A mobile hydrogen supply system includes a natural energy power generation device that generates electric power from natural energy, and a hydrogen generation device that generates hydrogen. The hydrogen generation device is operable on electric power generated by the natural energy power generation device, and the natural energy power generation device and the hydrogen generation device are transportable.
Provided are a cage for a rolling bearing capable of satisfying different required characteristics while securing cage strength, and a rolling bearing using the cage. A cage 5 holds a plurality of balls 4 in a rolling bearing 1, is guided by an outer ring 3, and includes: cage bodies 8 and 11 having an annular shape and including a pocket hole for accommodating each of the balls 4; a resin portion 9 formed at least in a portion on which each of the balls 4 slides in an inner surface of the pocket hole of the cage body 8; and a resin portion 12 having a composition different from that of the resin portion 9 and formed in a guide portion of the cage body 11 sliding on the outer ring 3.
Gel Sheet Chip, Method For Manufacturing Gel Sheet Chip, Sample Collecting Method, Gel Plate, Sample Collecting Set, Culture Implement, and Method For Manufacturing Culture Implement
A gel sheet chip includes a film, a frame, gel, and a sample to be collected. The frame is placed on the film and a through-hole is formed in the frame. The gel is disposed on the film in the through-hole. The sample to be collected is supported by the gel.
A bearing device for a vehicle wheel suppresses shaking of a vehicle wheel mounting flange by defining dimensional relationships of the various components of the vehicle wheel mounting flange. A vehicle wheel mounting flange (3b) includes a plurality of screw holes (31) into which wheel bolts are screwed, and a rib (35) provided on an inner side circumferential edge of the screw holes (31). When A represents a nominal diameter of the screw hole (31), B represents a width direction dimension of the rib (35) in a cross-section that passes through the center of the screw hole (31) and that is tangent to the pitch circle of the screw hole (31), and C represents a thickness direction dimension of the vehicle wheel mounting flange (3b) that passes through the rib (35), B/A≥1.7 and C/A≥0.8 are satisfied.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
5.
SILICON NITRIDE SINTERED BODY, MACHINE PART USING THE SAME, AND BEARING
To provide: a silicon nitride sintered body having excellent mechanical property and imparting superior lifetime to a product into which the silicon nitride sintered body is processed; a machine part using the silicon nitride sintered body; and a bearing. The silicon nitride sintered body: has the crystallinity of 75-90% calculated by the following formula based on an XRD diffraction pattern on a mirror-polished cutting face of the silicon nitride sintered body; contains one element or more of Y, Ce, Nd and Eu in an amorphous phase; and does not have an inclusion having a diameter of more than 50 μm and a pore having a diameter of more than 50 μm in a surface layer portion.
To provide: a silicon nitride sintered body having excellent mechanical property and imparting superior lifetime to a product into which the silicon nitride sintered body is processed; a machine part using the silicon nitride sintered body; and a bearing. The silicon nitride sintered body: has the crystallinity of 75-90% calculated by the following formula based on an XRD diffraction pattern on a mirror-polished cutting face of the silicon nitride sintered body; contains one element or more of Y, Ce, Nd and Eu in an amorphous phase; and does not have an inclusion having a diameter of more than 50 μm and a pore having a diameter of more than 50 μm in a surface layer portion.
Crystallinity (%)=Crystalline peak area/(Crystalline peak area+Amorphous peak area)×100
A ball screw device 4 includes a screw shaft 9 having a screw groove 9a formed in an outer peripheral surface, a nut 8 having a screw groove 8a formed in an inner peripheral surface, and a large number of balls 10 arranged between the screw groove 9a of the screw shaft 9 and the screw groove 8a of the nut 8. A ratio Δr/L1 of a radial gap Δr, which is a maximum amount of radial movement of the nut 8 with respect to the screw shaft 9, to an axial span L1 between the large number of balls 10 is made larger than 1/2000.
A ball bearing includes a cage circular annular portion and a seal member. The cage circular annular portion has a cage-side sliding contact surface axially opposed to the seal member and configured to come into sliding contact with the seal member. The seal member has a seal-side sliding contact surface configured to come into sliding contact with the cage-side sliding contact surface. A plurality of axial protrusions each having an axially convex circular arc shape in cross sections along a circumferential direction are formed on one of the cage-side sliding contact surface and the seal-side sliding contact surface at constant pitches in the circumferential direction.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
An outer surface rubber portion is formed to cover the entire axially outer surface of a metal core. An inner surface rubber portion is formed with a circular annular opening through which the axially inner surface of the metal core is exposed on the same circumference passing on the radially outer side of minute protrusions; and circular arc-shaped openings through which the axially inner surface of the metal core is exposed on the same circumference passing on the radially inner side of the minute protrusions.
A rolling component has a surface and is made of steel. The rolling component comprises a surface layer portion that is a region up to 20 m in depth from the surface. The rolling component is intended for use with hydrogen-utilizing equipment. The steel contains 0.70 mass percent or more and 1.10 mass percent or less of carbon, 0.15 mass percent or more and 0.35 mass percent or less of silicon, 0.30 mass percent or more and 0.60 mass percent or less of manganese, 1.30 mass percent or more and 1.60 mass percent or less of chromium, 0.01 mass percent or more and 0.50 mass percent or less of molybdenum, and 0.01 mass percent or more and 0.50 mass percent or less of vanadium, with a balance consisting of iron and unavoidable impurities. In the surface layer portion, the steel has a nitrogen concentration of 0.2 mass percent or more.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
C21D 9/36 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ballsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for rollers
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
A control device controls an attitude control actuator by means of which a distal end member located on a link actuation device can be moved. A parallel linkage mechanism includes a proximal end-side link hub, a distal end-side link hub, and three linkages via which the distal end-side link hub is coupled to the proximal end-side link hub in such a manner that allows the attitude of the distal end-side link hub to change relative to the proximal end-side link hub. The control device includes a parameter switcher which switches control parameters to adjust the jerk of the attitude control actuator or the distal end member based on a load applied to the distal end member. The parameter switcher can switch more than one control parameter including at least one of the filter time constant of a moving average filter or a model following control gain.
A plunging type constant velocity universal joint has six torque transmission balls, and a curvature center of a spherical outer peripheral surface and a curvature center of a spherical inner peripheral surface of a cage are offset toward opposite sides in an axial direction with respect to a joint center. The plunging type constant velocity universal joint is used at a normal operating angle of from 8° to 12°. A ratio DBALL/DSPCD of a diameter (DBALL) of the torque transmission ball to a spline pitch circle diameter (DSPCD) of a coupling hole of an inner joint member is within a range of 0.80 to 0.86. A contact angle of the torque transmission ball and a linear track groove is within a range of 32° to 35°. A contact ratio of the torque transmission ball and the linear track groove is within a range of 1.05 to 1.08.
F16D 3/226 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a cylinder co-axial with the respective coupling part
F16D 3/223 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
12.
SILICON NITRIDE SINTERED BODY, MACHINE PART, AND BEARING
To provide a silicon nitride sintered body, a machine part and a bearing that have superior mechanical properties and sliding properties. A rolling element 4 is a silicon nitride sintered body including a silicon nitride particle, a rare earth element and an aluminum element. In a range in which the sum of the area of the upper-size crystal grain diameter within a range where the crystal grain diameter of a β-type Si3N4 particle in the silicon nitride sintered body has the crystal orientation of 15-180 degrees, is 30% relative to an area of the total crystal grain diameter, the crystal grain diameter of the β-type Si3N4 particle is 1-4 μm by circle equivalent diameter and/or the aspect ratio of the β-type Si3N4 particle is 3-6.
C04B 35/584 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on silicon nitride
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A casing 10 that accommodates an electric motor 2 and a ball screw 30 as a motion conversion mechanism 3 includes a first case 11 that is made of an aluminum alloy and accommodates the electric motor 2 and a second case 12 that is coupled to the first case 11 in an axial direction in a state of accommodating the ball screw 30. The electric motor 2 is supported by the second case 12 via a metal bracket 8 and a screw 9, and the entire outer surface of at least one of the metal bracket 8 and the second case 12is covered with an insulating film C.
A plunging type constant velocity universal joint includes an outer joint member having a plurality of linear track grooves, an inner joint member having a plurality of linear track grooves, a plurality of torque transmission balls, and a cage configured to accommodate the torque transmission balls in pockets. A curvature center of a spherical outer peripheral surface and a curvature center of a spherical inner peripheral surface of the cage are offset toward opposite sides in an axial direction with respect to a joint center. A spherical clearance that allows guide in contact is formed between a spherical outer peripheral surface of the inner joint member and a spherical inner peripheral surface of the cage. A positive axial clearance is formed between the pocket of the cage and the torque transmission ball.
F16D 3/2245 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a sphere where the groove centres are offset from the joint centre
F16D 3/223 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
A feed screw mechanism includes a rotary member having a female screw portion, a linear motion member having a male screw portion screwed to the female screw portion and making a linear motion with rotation of the rotary member, a lubricant between the female and male screw portions, a housing housing the rotary and linear motion members, and a wall portion protruding, in a radial direction, from the outer peripheral surface of the linear motion member. The wall portion moves together with the linear motion member, and an outer radial end portion of the wall portion is disposed: to not contact the inner peripheral surface of the housing and a member provided on the inner peripheral surface of the housing; or to be slidable with respect to the inner peripheral surface of the housing or the member provided on the inner peripheral surface of the housing.
F16H 25/24 - Elements essential to such mechanisms, e.g. screws, nuts
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
A rolling component has a surface and is made of steel. The rolling component comprises a surface layer portion that is a region up to 20 μm in depth from the surface. The steel contains 0.70 mass percent or more and 1.10 mass percent or less of carbon, 0.15 mass percent or more and 0.35 mass percent or less of silicon, 0.30 mass percent or more and 0.60 mass percent or less of manganese, 1.30 mass percent or more and 1.60 mass percent or less of chromium, 0.01 mass percent or more and 0.50 mass percent or less of molybdenum, and 0.01 mass percent or more and 0.50 mass percent or less of vanadium, with a balance consisting of iron and unavoidable impurities. In the surface layer portion, the steel has a nitrogen concentration of 0.2 mass percent or more.
A shell type roller bearing includes a shell outer ring that includes a cylindrical portion (12) and a flange (13) extending radially inward from one axial end of the cylindrical portion and that is made of an austenitic stainless steel material. One axial end portion of an inner peripheral surface (16) of the cylindrical portion (12) is a tilted surface (16b), the inner diameter of the tilted surface (16b) is larger than the inner diameter of an axial middle region of the inner peripheral surface (16), and the hardness of the flange (13) is in the range of 300 to 450 HV.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
A grinding apparatus includes: a grinding member driving unit having a motor that rotates a grinding member; a table driving unit that brings the grinding member into contact with a workpiece by moving the grinding member and the workpiece relative to each other; an AE sensor that detects an acoustic emission generated when the grinding member and the workpiece are brought into contact with each other; and a controller that controls a cut-in speed of the grinding member into the workpiece by controlling the table driving unit. The controller controls the cut-in speed using an output of the AE sensor and a motor current of the grinding member driving unit.
B24B 49/00 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
B24B 49/10 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
B24B 51/00 - Arrangements for automatic control of a series of individual steps in grinding a workpiece
A mechanical component includes steel and has a surface. The steel is quenched and tempered. The mechanical component includes a nitrided layer on the surface and a core farther away from the surface than the nitrided layer. A nitrogen concentration in the steel on the surface is greater than or equal to 0.01 mass percent. A hardness of the steel on the surface is greater than or equal to 820 Hv. An amount of residual austenite in the steel in the core is greater than or equal to 0.1 volume percent and less than or equal to 9 volume percent. A dislocation density of the residual austenite in the steel in the core is greater than or equal to 4.0×1014 m−2. The steel is high carbon steel or bearing steel.
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C21D 1/18 - HardeningQuenching with or without subsequent tempering
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
A vibration measurement device includes an acceleration sensor, an acceleration sensor mounting fixture, a spacer as an insulating member, and a heat shrink tube. The acceleration sensor includes an element. The acceleration sensor mounting fixture is disposed on a side of the acceleration sensor, adjacent to an object under measurement. The spacer is sandwiched between the acceleration sensor and the acceleration sensor mounting fixture so as to be in contact with both the acceleration sensor and the acceleration sensor mounting fixture. The heat shrink tube covers a sensor outer edge and a mounting fixture outer edge. The heat shrink tube includes a region protruding outward of acceleration sensor and the acceleration sensor mounting fixture as viewed from above.
This transmission shaft is used in a transmission and has a raceway surface on which needle rollers roll. The transmission shaft includes a base material and a triiron tetraoxide film. The base material includes any one of chromium steel, chromium-molybdenum steel, or nickel-chromium-molybdenum steel, and has, on a surface thereof, a diffusion layer including crystal grains of at least one of iron carbide, iron nitride, or iron carbonitride. The triiron tetraoxide film is formed on the surface of the base material and is disposed at least on the raceway surface.
A bearing includes a plurality of claws located in a circumferential direction at an end face of an inner ring and protruding from the end face of an inner ring in an axial direction. A lock mechanism can be used to fasten the claws to a shaft. At least one of the plurality of claws has an opening provided therein.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 23/08 - Ball or roller bearings self-adjusting
In a tripod type constant velocity universal joint 1 of a double roller type, a carbon content in a core portion of a tripod member 3 is set to 0.23 to 0.44%, and a hardened layer 16 of a carburized layer is provided on the surface of a leg shaft 32. A first region P having a radius of curvature Ra in a cross section in a direction orthogonal to a joint axial direction including an axial line of the leg shaft 32 and a second region Q having a radius of curvature Rb in a cross section in the joint axial direction including the axial line of the leg shaft 32 are provided in an intermediate portion 33 provided between a body portion 31 of the tripod member 3 and the leg shaft 32. Ra>Rb is set.
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
24.
SENSOR HOLDER AND BEARING DEVICE FOR VEHICLE WHEEL
Provided are: a sensor holder that can prevent influence on the performance of encoder reading by a sensor; and the like. A sensor holder 12 is provided with: a cap part 121 that is fitted into an outer ring 2 so as to cover an inner-side opening 2a of the outer ring 2; a sensor support part 122 that, at a portion of the cap part 121 opposing a magnetic encoder 11, protrudes from the cap part 121 toward one side in the axial direction, and supports a rotation speed sensor 13 for detecting displacement of the magnetic encoder 11; and a nut holding part 123 that protrudes from the cap part 121 toward the one side in the axial direction and holds a nut 124 for securing the rotation speed sensor 13 onto the cap part 121. The sensor support part 122 and the nut holding part 123 are formed separately, and one axial end surface 124a of the nut 124 held by the nut holding part 123 protrudes further toward the one side in the axial direction than one axial end surface 122c of the sensor support part 122.
A flexible boot for a constant velocity universal joint includes: attachment portions to a mating member at both ends; and a bent portion provided between the attachment portions and absorbing deformation caused by operation of a constant velocity universal joint. The flexible boot is made of a rubber material obtained by blending 50 to 80 parts by weight of HNBR having an acrylonitrile content of 15 to 21 wt % and 20 to 50 parts by weight of EPDM, the rubber material having an elastic recovery rate of 18% or more at −40° C. in a TR test.
Provided is a tapered roller bearing of an inner ring guidance design. A smaller diameter annular part of a cage and a smaller rib of an inner ring of the bearing defines a smaller diameter-side clearance S1. A larger diameter annular part of the cage and a larger rib of the inner ring defines a larger diameter-side clearance S2. The bearing defines a dimensionless number Y which is in the range of at least 0.39 to no more than 0.88 according to the following equation: Y=(Smax/S3)×(d/l)
where d and l are a mean roller diameter and a roller length of the tapered rollers, respectively, S3 corresponds to the equation: S3=(W/2)/tan θ−(PCD/2+(d/2)/sin θ−((D/2)2−(W/2)2)1/2), Smax is chosen from the maximum values of S1 and S2, W is a pocket width of the cage, θ is a pillar angle which is a half of the angle formed, in a section corresponding to the mean roller diameter d, by surfaces of adjacent pillars of the cage that make contact with a tapered roller located in between, PCD is the diameter of roller centers representing the pitch circle diameter of the arrangement of the tapered rollers, and D is a cage inner diameter.
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
A wheel bearing device for which the work of grinding a wheel hub is simplified. The wheel hub (3) has an inside track groove (3c), a seal land part (3d), a recess (3m), and a flange surface (3k). An outer-side sealing member (10) is provided with a core metal (11) and a sealing member (12). The sealing member includes a contact lip (12d) and a labyrinth lip (12e) facing the recess across a gap. The recess has a bottom (313) located between an outer diameter-side edge (311) and an inner diameter-side edge (312), and a tapered surface (314) that extends in the radial direction from the outer diameter-side edge toward the bottom and tilts toward one end of the axial direction going from the outer diameter-side edge toward the bottom.
In a parallel link mechanism, a distal end side link hub is coupled to a proximal end side link hub via three link mechanisms such that a posture of the distal end side link hub can be changed. Each link mechanism includes a proximal side end link member, a distal side end link member, and a center link member, and forms a quadric chain link mechanism composed of four revolute pairs. A singular point occurs when a central axis of the proximal or distal end side link hub and a central axis which is a rotation axis of a revolute pair section of the proximal or distal side end link member and the center link member coincide with each other. An axis angle of the center link member is specified such that a posture in which the singular point occurs is avoided.
In a tapered roller bearing in which a segment holder divided into a plurality of segments in a circumference direction is used in an inner ring assembly, which is incorporated into an outer ring, guide claws are provided on an outer-diameter side of adjacent columnar portions of each pocket of a holder to allow the tapered rollers to be inserted into the pockets from an inner-diameter side of the segments. An engaging portion is provided on a large-diameter-side lateral-surface of a large-diameter-side arc-shaped portion of the segment. A connecting member, which is to be wound around on a large-diameter side of the segments arranged in a ring shape, is made to pass through the engaging portion, and ends of the connecting member are removably connected together by a fastening member, so that adjacent segments are butted together and fixed.
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
An electrically-driven oil pump device includes a pump that circulates oil, a motor that drives the pump, a control unit that drives the motor on the basis of the received command rotational speed, a current detection unit that detects a motor current flowing through the motor, and a rotation sensor that detects the rotational speed of the motor. When the current detection unit detects a motor current greater than or equal to a set value that has been set in advance on the basis of the relationship of the motor current with respect to the pressure (hydraulic pressure) of the oil, the control unit outputs a response rotational speed corresponding to the command rotational speed instead of the actual rotational speed detected by the rotation sensor.
F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed
31.
CLAMPING RING AND BEARING UNIT COMPRISING THE RING
A clamping ring (6) includes: a ring main body (10) including a cut (13) formed in a part in a circumferential direction and a pair of circumferential-direction end portions (14a and 14b) opposed to each other across the cut (13); and bolt holes (11a and 11b) passing through the pair of circumferential-direction end portions (14a and 14b). The clamping ring (6) further includes a misalignment preventing part (16) configured to prevent misalignment of a center of gravity (CG) of the ring main body (10) from a center line (C1) of an inner peripheral surface (10a) of the ring main body (10).
A condition monitoring system includes a monitoring terminal, an acceleration sensor, and a data processor. The data processor calculates a diagnostic parameter from data measured by the acceleration sensor, determines a degree of damage to a bearing or a gear included in a wind turbine generator based on the diagnostic parameter, and controls the monitoring terminal to show information indicating a degree of suppression of electric power generated by the wind turbine generator in accordance with the degree of damage to the bearing or the gear.
In a parallel link mechanism, a distal end side link hub is coupled to a proximal end side link hub via three link mechanisms such that a posture of the distal end side link hub can be changed relative to the proximal end side link hub. Each link mechanism includes a proximal side end link member rotatably coupled at one end thereof to the proximal end side link hub, a distal side end link member rotatably coupled at one end thereof to the distal end side link hub, and a center link member rotatably coupled at both ends thereof to other ends of the proximal and distal side end link members via both revolute pair sections. The parallel link mechanism includes a rotation transmission mechanism configured to allow rotation of one revolute pair section to rotate the other revolute pair section in reverse.
A power generation system includes a wind power generation device, a control device, and a power supply target. In power generation system, control device performs power conversion to a power generated by wind power generation device, and supplies the converted power to a power supply target. Control device has a reference map for controlling a power conversion device of the control device. Reference map is a map indicating a relationship between an input voltage to the control device (power conversion device) and an output power from the control device (power conversion device). When a start condition is satisfied, control device executes correction control for correcting reference map, and searches for a point at which an output power of power generation system is maximized while shifting the output voltage of a generator by MPPT control. Control device corrects reference map on the basis of a result of the search.
A first seal and a second seal seal an annular space between an outer ring and an inner ring by sandwiching a retainer. A stator including a coil is supported by the first seal and is opposed to a magnetic ring. A sensor, a wireless communication circuit, and a power supply circuit are supported by the second seal. A wire electrically connects the coil and the power supply circuit. The wire includes a part disposed in a groove extending in an axial direction of a bearing on an outer peripheral surface of the outer ring.
A rolling bearing includes a plurality of balls and two raceway members. The balls and the raceway members have contact surfaces. In at least either of balls and raceway members, a superficial part is formed in a region from the contact surface to a depth of 20 μm. Of the balls and the raceway members, the member in which a superficial part is formed in the contact surface is made of steel that has been quenched. A raceway surface which is a contact surface of the raceway member is a partial arc in a sectional view that passes a central axis of the rolling bearing and is parallel with the central axis. The diameter of the partial arc is greater than or equal to 1.01 times and less than or equal to 1.08 times the diameter of the ball.
A power generation system includes a rotating body, a generator, a brake circuit, a voltage sensor, and a control device. When rotation speed of the rotating body exceeds a first threshold, the control device executes a brake operation by the brake circuit. When a release condition determined based on at least one of a value of a generated voltage detected by the voltage sensor and the rotation speed of the rotating body is satisfied after the rotation speed of the rotating body is lower than the first threshold, the control device stops the brake operation by the brake circuit.
A windmill includes a shaft, a blade, and a supporting member. The windmill is rotatable about a center axis of the shaft. The blade has a blade main body portion extending along an axial direction that is a direction of the center axis. When viewed in a cross sectional view orthogonal to the axial direction, the blade main body portion includes a front edge and a rear edge, the front edge being an end on a front side in a rotation direction of the windmill, the rear edge being an end on a rear side in the rotation direction. The supporting member extends along a radial direction orthogonal to the axis direction and passing through the center axis, so as to connect the shaft and the blade main body portion to each other.
In a tripod type constant velocity universal joint 1 of a double roller type, R/PCD≥0.0850 and t/PCD≥0.145, where PCD is a pitch circle diameter of a roller guide surface 6 of an outer joint member 2. R is a radius of curvature at an intermediate portion between a body portion 31 and a leg shaft 32 of a tripod member 3, and t is a minimum distance from a large-diameter portion 34a of a spline 34 of the tripod member 3 to an intermediate portion 33.
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
40.
CELL TISSUE PRODUCTION METHOD, CELL TISSUE PRODUCTION SET, AND CULTIVATION CONTAINER CONTAINING CELL TISSUE PRODUCED BY SAID PRODUCTION METHOD
This cellular tissue production method can produce a cellular tissue with high density and high shape retainability while the cell viability is maintained, and includes: a first application step of applying a first application liquid to an application target; and a second application step of applying and layering a second application liquid onto the first application liquid applied in the first application step, wherein the second application step includes subjecting an interface between the first application liquid and the second application liquid to gelation while the first application liquid is kept fluid.
An outer joint member and a hub wheel are coupled to be able to transmit torque by meshing face splines respectively provided and applying a tightening force in an axial direction between both the face splines. Shapes of tooth surfaces of the face splines are determined such that, when bringing the face splines close to each other in the axial direction and meshing them with each other, tooth surfaces of the face splines first come into contact with each other in, among an outer diameter portion of a meshing region between both the face splines, an inner diameter portion, and an intermediate portion sandwiched between the outer diameter portion and the inner diameter portion, one of the outer and inner diameter portions, and then the tooth surfaces of both the face splines come into contact with each other in the other of the outer and inner diameter portions.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16D 1/06 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
F16D 3/16 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
42.
METHOD FOR FIXING BOOT TO CONSTANT VELOCITY UNIVERSAL JOINT
fitting a boot 20 to an outer periphery of an outer joint member 2, causing a boot band 100 to circle around an outer periphery of the boot 20, and fastening the boot 20 by reducing a diameter of the boot band 100 are included. A portion (lug portion 111) of the boot band 100 to which a pressing force in an inner diameter direction is applied when the diameter of the boot band 100 is reduced is arranged in a circumferential region R of a thin portion 21S of the boot 20.
F16D 3/84 - Shrouds, e.g. casings, coversSealing means specially adapted therefor
F16B 2/08 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
In a wheel bearing device, an axial end surface of a hub 1 of a wheel bearing 6 and an axial end surface of an outer joint member 20 of a constant velocity universal joint 7 are coupled by a recess-and-protrusion fitting structure (face spline structure X) in a torque transmittable manner. An inner peripheral surface of the hub 1 of the wheel bearing 6 and an outer peripheral surface of the outer joint member 20 of the constant velocity universal joint 7 are fitted to each other.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
An outer joint member 31 and a hub wheel 16 are coupled so as to be able to transmit torque by meshing face splines 51 and 52 respectively provided and applying a tightening force in an axial direction between both the face splines 51 and 52. Shapes of tooth surfaces of both the face splines 51 and 52 are determined such that, in a process of bringing both the face splines 51 and 52 close to each other in the axial direction and meshing with each other, tooth surfaces 51a and 51b of both the face splines 51 and 52 first come into contact with each other in, among an outer diameter portion Ea of a meshing region X between both the face splines, an inner diameter portion Ec, and an intermediate portion Eb sandwiched between the outer diameter portion and the inner diameter portion, the intermediate portion Eb.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16D 1/02 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
F16D 3/16 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
A cage is provided which is less likely to be deformed by a centrifugal force, and in which the strength of a weld is less likely to decrease. Each horn portion includes a base wall axially connected to a ring portion, and located between pockets; and a pair of claws separated from each other. The pair of claws each has a pocket inner surface facing the pocket; and an opposed surface (14) on the side opposite from the pocket inner surface. The base wall includes a pair of connection portions axially connecting the respective claws to the ring portion; and an intermediate portion circumferentially connecting the connection portions to each other. A weld is disposed in a resin area consisting of one of the claws, one of the connection portions, and a circumferential section of the ring portion.
An internal pore of a sintered metal bearing 8 is impregnated with a lubricating fluid, and a radial dynamic pressure generation portion 8a1 is formed on an inner peripheral surface 8a. An axial dimension L is 4.8 nm or less, a thickness dimension t is 0.5 mm or more and 1.5 nm or less, and a ratio L/D2 of the axial dimension L to an outer diameter dimension D2 is 0.24 or more and 0.6 or less.
To provide a piston ring having superior wear resistance and causing less wear damage of a cylinder. A piston ring 1 is used in a reciprocating compressor that compresses gas. The piston ring 1 is formed of a resin composition containing polyetheretherketone resin as a main component. The melt viscosity of the polyetheretherketone resin at the shear rate of 1,000/s and the temperature of 400° C. is 200-550 Pa·s based on a measuring method defined in ISO 11443. The resin composition contains 5-25 vol % of carbon fiber and 5-25 vol % of a solid lubricant, relative to the whole of the resin composition. The solid lubricant includes at least one of PTFE resin and graphite.
F16J 9/26 - Piston-rings, seats thereforRing sealings of similar construction in general characterised by the use of particular materials
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F16J 9/28 - Piston-rings, seats thereforRing sealings of similar construction in general characterised by the use of particular materials of non-metals
A clutch unit includes an operation lever, an operation member, an input-side clutch, an output-side clutch, and a bottomed cylindrical housing. The input-side clutch includes an input-side inner ring member and an operation bracket. The operation bracket includes an engagement portion that engages with the input-side inner ring member, a facing portion that faces the bottom surface of the housing with a gap therebetween, a fastened portion that penetrates a through hole formed in the bottom surface of the housing and is fastened to the operation member, and a sliding-contact portion that extends from the facing portion toward the bottom surface of the housing and comes into sliding-contact with the bottom surface of the housing.
F16D 41/063 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by moving along the inner and the outer surface without pivoting or rolling, e.g. sliding wedges
B60N 2/16 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
F16D 41/08 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
49.
VIBRATION ANALYSIS APPARATUS AND VIBRATION ANALYSIS SYSTEM
A vibration analysis apparatus diagnoses a machine state based on vibration detected by a measurement instrument. A setting unit sets a diagnosis target, a rotation speed, and a determination criterion value. A communication unit communicates with the measurement instrument to transmit a trigger to start measurement of vibration to the measurement instrument or to receive data on a vibration waveform from the measurement instrument. A condition determination unit determines a diagnosis condition based on information on the diagnosis target. An analyzer subjects data inputted from the measurement instrument to frequency analysis. An abnormality determination unit makes determination as to an abnormality of the diagnosis target based on the determination criterion value. Thus, the vibration analysis apparatus and a vibration analysis system capable of vibration analysis with certain accuracy being maintained regardless a skill level of a user can be provided.
−1 at 25° C. is 3,000 Pa or less. The viscosity of the grease composition is 1 Pas or less. The yield stress of the grease composition at 25° C. measured by a dynamic viscoelasticity analysis method using a rheometer is 1,300-3,000 Pa.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
C10M 107/02 - Hydrocarbon polymersHydrocarbon polymers modified by oxidation
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 169/00 - Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
C10M 169/02 - Mixtures of base-materials and thickeners
C10M 169/04 - Mixtures of base-materials and additives
F16C 33/66 - Special parts or details in view of lubrication
An application mechanism applies a liquid material on an application surface. The application mechanism includes: an application needle holder fixing unit; an application needle holder detachably attached to the application needle holder fixing unit; an application needle held at the application needle holder; and a cushioning mechanism. The cushioning mechanism is capable of cushioning an impact when the application needle is brought into contact with the application surface.
B05C 1/02 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
An insulated bearing device is provided which includes a housing, an outer ring and rolling elements, and in which an insulating film for providing electrical insulation between the housing and the outer ring is disposed on the surface of the outer ring. The insulating film includes a straight portion extending along the outer periphery of the outer ring and having a constant outer diameter in the axial direction. The housing has, on the inner periphery of its housing hole, an inner peripheral cylindrical surface formed at a position intersecting with the axial centerlines of the rolling elements, and the straight portion is fitted to, and in contact with, the inner peripheral cylindrical surface. The contact range between the inner peripheral cylindrical surface and the straight portion has an axial length shorter than the entire axial length of the straight portion.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16D 3/224 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a sphere
F16D 3/2245 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a sphere where the groove centres are offset from the joint centre
F16D 3/227 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
F16D 3/223 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
To provide a rolling bearing having superior handling property and creep resistance. A rolling bearing 1 includes an inner ring 2 and an outer ring 3 that are raceway rings, and a plurality of balls 4 interposed between the inner ring and the outer ring. The outer ring 3 is fitted to a housing 10. The rolling bearing 1 includes a surface coating film 8 on an outer ring outer diametrical surface 3a that is a fitting surface with the housing 10. The surface coating film 8 contains: a binder containing two or more kinds of thermosetting resins having different average molecular weights; and a solid lubricant. The solid lubricant contains molybdenum disulfide, polytetrafluoroethylene resin, and graphite.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A bearing part (10) is composed of a steel, and has a quench-hardened layer (11) in a surface of the bearing part. The quench-hardened layer includes a plurality of martensite crystal grains. The plurality of martensite crystal grains are classified into a first group and a second group. A minimum value of crystal grain sizes of the martensite crystal grains belonging to the first group is larger than a maximum value of crystal grain sizes of the martensite crystal grains belonging to the second group. A value obtained by dividing a total area of the martensite crystal grains belonging to the first group by the total area of the plurality of martensite crystal grains is more than or equal to 0.3. A value obtained by dividing, by the total area of the plurality of martensite crystal grains, a total area of the martensite crystal grains belonging to the first group except for a martensite crystal grain that has a minimum crystal grain size and that belongs to the first group is less than 0.3. An average grain size of the martensite crystal grains belonging to the first group is less than or equal to 1.5 μm. The quench-hardened layer (11) further includes a plurality of cementite grains. A number density of cementite grains each having a grain size of more than or equal to 1 μm is more than or equal to 0.025/μm2.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races
C21D 1/18 - HardeningQuenching with or without subsequent tempering
C21D 1/74 - Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
A spindle device includes: a rotation shaft; a bearing housing having a cylindrical shape extending in a direction of a center axis of the rotation shaft; a bearing attached to an inner peripheral surface of the bearing housing and rotatably supporting the rotation shaft; and a first elastic member. A first flow path and a second flow path are formed inside the bearing housing, each of the first flow path and the second flow path extending in a direction of a center axis of the bearing housing. A first groove is formed in an outer peripheral surface of the bearing housing, the first groove extending in a peripheral direction of the bearing housing, the first groove being connected to the first flow path and the second flow path. The first elastic member closes an opening of the first groove.
Provided is a roller bearing which includes rollers (4, 5) interposed between raceway surfaces of inner and outer rings (2, 3) and having a roller outer circumferential surface, and a DLC film on the roller outer circumferential surface. The DLC film includes a metal layer, an intermediate layer containing the metal and DLC, and a superficial layer containing DLC, in the stated order starting from a side adjacent to a substrate of the rollers (4, 5). The intermediate layer has a bilayered structure of a top layer and a bottom layer. The top layer is a DLC-enriched layer having a greater content of DLC than the bottom layer. The bottom layer is a metal-enriched layer having a greater content of the metal than the top layer. The metal-enriched layer has a layer thickness of between at least 100 nm and no more than 300 nm.
The condition monitoring system is for monitoring the conditions of a piece of equipment and includes: a sensor configured to be installed to the piece of equipment; a data instrumentation unit configured to receive a sensing signal from the sensor to acquire instrumentation data from the sensing signal under a predefined instrumentation condition; and a data diagnosis unit configured to receive the instrumentation data from the data instrumentation unit and use the instrumentation data to perform a diagnosis process to diagnose the conditions of the piece of equipment. The data diagnosis unit includes an edge application and an industrial IoT platform. The edge application includes a data collection and analysis module, and the data collection and analysis module is configured to calculate a feature for the instrumentation data from the data instrumentation unit and broadcast the feature to the industrial IoT platform.
A cage is asymmetrical to a radially extending straight line extending. Supposing that α is the angle of contact of the rolling element, α is defined as 30°≤α≤45°. The relationship defined in the numerical expression is satisfied, where D is the outer diameter of the outer ring, d is the inner diameter of the inner ring, and Da is the diameter of the rolling element. With center axes of the whole bearing in an axial direction and of the cage in the axial direction overlapping each other, at least one of the following relationships is satisfied;
A cage is asymmetrical to a radially extending straight line extending. Supposing that α is the angle of contact of the rolling element, α is defined as 30°≤α≤45°. The relationship defined in the numerical expression is satisfied, where D is the outer diameter of the outer ring, d is the inner diameter of the inner ring, and Da is the diameter of the rolling element. With center axes of the whole bearing in an axial direction and of the cage in the axial direction overlapping each other, at least one of the following relationships is satisfied;
A/Da≤0.020 (2), and
A cage is asymmetrical to a radially extending straight line extending. Supposing that α is the angle of contact of the rolling element, α is defined as 30°≤α≤45°. The relationship defined in the numerical expression is satisfied, where D is the outer diameter of the outer ring, d is the inner diameter of the inner ring, and Da is the diameter of the rolling element. With center axes of the whole bearing in an axial direction and of the cage in the axial direction overlapping each other, at least one of the following relationships is satisfied;
A/Da≤0.020 (2), and
2A/PCD≤0.010 (3),
A cage is asymmetrical to a radially extending straight line extending. Supposing that α is the angle of contact of the rolling element, α is defined as 30°≤α≤45°. The relationship defined in the numerical expression is satisfied, where D is the outer diameter of the outer ring, d is the inner diameter of the inner ring, and Da is the diameter of the rolling element. With center axes of the whole bearing in an axial direction and of the cage in the axial direction overlapping each other, at least one of the following relationships is satisfied;
A/Da≤0.020 (2), and
2A/PCD≤0.010 (3),
where A is the smallest dimension value of a clearance in a radial direction between surfaces of a pocket of the cage facing the rolling element and of this rolling element, and PCD is the pitch diameter of each rolling element.
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
NATIONAL UNIVERSITY CORPORATION HAMAMATSU UNIVERSITY SCHOOL OF MEDICINE (Japan)
NTN Corporation (Japan)
Inventor
Hariyama, Takahiko
Kawasaki, Hideya
Ohba, Hiroaki
Abstract
An immunochromatography assay kit includes a specimen dropping portion to which a specimen is dropped, a conjugate portion to which a labeled antibody having a property of binding to a detection target in the specimen is immobilized, and a plurality of detection portions to which a capture antibody having a property of binding to the detection target is immobilized. The specimen dropping portion, the conjugate portion, and the plurality of detection portions are formed on a porous member. An outer shape of each detection portion is a dot shape.
A bearing apparatus includes a housing where a main spindle is accommodated, a bearing including an inner ring and an outer ring, the bearing supporting the main spindle rotatably with respect to the housing, a retaining lid fitted to an inside surface of the housing while the retaining lid is in contact with an axial end surface of the housing and an axial end surface of the outer ring, and a communication module arranged in a region opposed to the retaining lid with the bearing being interposed, the communication module wirelessly communicating over electromagnetic waves. In a portion of the retaining lid in contact with the housing, a non-metallic layer composed of ceramic which is a non-metallic material is provided.
A fluid dynamic bearing (bearing sleeve 8) includes a first dynamic pressure generating part 11 and a second dynamic pressure generating part 12 that are provided in an inner peripheral surface 8a so as to be spaced apart from each other in an axial direction. The respective dynamic pressure generating parts 11 and 12 have a plurality of dynamic pressure generating grooves 11a, 11b, 12a, and 12b arranged in a herringbone shape and having different tilt directions. The first dynamic pressure generating part 11 has an annular hill part 11c between the axial directions of the plurality of dynamic pressure generating grooves 11a and 11b having different tilt directions. The plurality of dynamic pressure generating grooves 12a and 12b, having different tilt directions, of the second dynamic pressure generating part 12 are continuous in the axial direction.
A rolling member is formed of quenched steel having a contact surface. The rolling member includes a superficial part in a region up to a depth of 20 μm from the contact surface. Steel contains greater than or equal to 0.70 mass % and less than or equal to 1.10 mass % of carbon, greater than or equal to 0.15 mass % and less than or equal to 0.35 mass % of silicon, greater than or equal to 0.30 mass % and less than or equal to 0.60 mass % of manganese, greater than or equal to 1.30 mass % and less than or equal to 1.60 mass % of chromium, greater than or equal to 0.01 mass % and less than or equal to 0.50 mass % of molybdenum, and greater than or equal to 0.01 mass % and less than or equal to 0.50 mass % of vanadium, and the remainder of iron and inevitable impurities.
C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races
An electric oil pump 1 includes: a pump unit 2 that generates hydraulic pressure; a motor unit 3 that drives the pump unit; a substrate 4 on which a control circuit for controlling the motor unit 3 is formed by a plurality of electronic components 41; and a housing 5 equipped with a pump accommodation unit 53 that houses the pump unit, a motor accommodation unit 54 that houses the motor unit, and a substrate accommodation unit 55 that houses the substrate. The substrate 4 is disposed along the tangential direction of a circle about the axis of the motor unit 3. The pump accommodation unit 53, the motor accommodation unit 54, and the substrate accommodation unit 55 are integrally formed.
A diagnosis-parameter calculation unit calculates a diagnosis parameter in a second time period, based on sensing data obtained in the second time period. A characteristic-data input unit obtains characteristic data representing characteristics of a monitoring target device in a first time period and the second time period, from a logger included in the monitoring target device. Using the characteristic data in the second time period and the diagnosis parameter in the second time period, a regression-model generation unit) generates a regression model representing a relationship between the characteristic data and the diagnosis parameter. Using the regression model, a diagnosis-parameter estimation unit estimates a diagnosis parameter in the first time period, which corresponds to the characteristic data in the first time period. Using the diagnosis parameters in the first time period and the second time period, the diagnosis-criteria setting unit sets diagnosis criteria.
A condition monitoring system includes a data measurement device, a data analyzer, and a diagnosis device. The data measurement device obtains, according to a measurement condition provided, measurement data from a detection signal of a sensor. The data analyzer performs an analysis process on the measurement data obtained by the data measurement device. The diagnosis device performs a diagnosis process of diagnosing a condition of a facility based on an analysis result obtained through the analysis process. The data analyzer sets the measurement condition and an analysis condition for the analysis process based on a time required for the analysis process and the diagnosis process.
Provided is a steering system which includes a hub unit with a steering function and a control device. A steering actuator includes a motor and a linear drive mechanism configured to convert a rotational output from the motor to a linear motion. An angle sensor is configured to sense a rotational angle of the motor and capable of generating two or more angle sensor values. A position sensor is configured to sense a position of the linear drive mechanism which represents an amount of displacement of an output rod and capable of outputting the same in the form of a position sensor value. The control device is configured to compare each of the angle sensor values sensed and generated by the angle sensor against the position sensor value sensed by and output from the position sensor to determine whether any one of the angle sensor values is incorrect.
Bearing cap for bearing device for vehicle wheel with rotational speed detection device, and bearing device for vehicle wheel with rotational speed detection device
In a bearing cap in which a sensor support part is formed on a bottom surface section of a cap body and in which an insertion hole for a rotational speed sensor is formed in the sensor support part, a recess that accommodates a tip portion of the rotational speed sensor is formed in the portion of the bottom surface section where the sensor support part is formed. The sensor support part includes a first wall section and a second wall section that are disposed, facing each other across a virtual line L passing through a center axis G1 of the bottom surface section and a center axis G2 of the insertion hole, and that are formed along the circumferential edge of the recess. Protrusions protruding from the bottom surface section are continuously provided on the outer circumferential surfaces of the first wall section and the second wall section.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
A one-way clutch includes a C-shaped spring having one end thereof engaged by the inner ring and the other end abutting a roller at one end of a row of rollers that abut each other, thereby engaging the rollers with the outer ring and the inner ring. The inner ring has a radius at the engaging end of the cam surface opposed to the roller at the other end of the row of the rollers larger than its radii at the engaging ends of the cam surfaces opposed to the other rollers of the same row.
F16D 41/067 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical and the members being distributed by a separate cage encircling the axis of rotation
F16D 41/06 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
70.
Assembling method and assembling device for hub bearing
To obtain a second assembly, first, an outer ring and first roller cassette of a first assembly are supported by a first support tool and a hub wheel of the first assembly is supported by a second support tool, and then the second support tool is moved upward, so that a roller support surface of the second support tool is introduced to the inside of the first roller cassette in the radial direction. Then, after a first seal member is attached to the outer ring, the second support tool is moved downward in accordance with the re-insertion of a cylindrical portion of the hub wheel into the inner periphery of the outer ring, so that a first inner raceway surface is inside of the first roller cassette in the radial direction while the roller support surface is ejected to the lower side of the first roller cassette.
F16C 43/06 - Placing rolling bodies in cages or bearings
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
A magnetic core material contains an Fe-based soft magnetic powder in which an inorganic insulating film 4b is formed on a surface of an Fe-based soft magnetic particle 4a, and an epoxy resin 4c containing a curing agent. The Fe-based soft magnetic particle 4a is formed of a pure iron powder or a low-alloy steel powder. A content of the epoxy resin containing the curing agent is 2 to 5 mass %. The epoxy resin is a mixture of a bisphenol A-type epoxy resin and a novolac-type epoxy resin.
H01F 1/26 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
To provide a grease-sealed bearing that is superior in fretting wear resistance and sealing performance when used under an oscillation condition with acceleration and deceleration such as a condition used in a robot joint. A grease-sealed bearing 1 includes an inner ring 2 and an outer ring 3 that are raceway rings, a plurality of rolling elements 4 interposed between the inner ring 2 and the outer ring 3, and a grease composition 7 sealed around the rolling elements 4. The bearing oscillates such that a bearing rotational direction changes while accelerating and decelerating. The grease composition contains a base oil and a thickener. The worked penetration of the grease composition is 310 or more. The thickener is a calcium sulfonate complex soap.
F16C 33/66 - Special parts or details in view of lubrication
C10M 115/10 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing sulfur
C10M 169/02 - Mixtures of base-materials and thickeners
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy
A bearing apparatus includes a bearing that rotatably supports a main spindle around a rotation axis, a spacer including an inner-ring spacer adjacent to an inner ring of the bearing and an outer-ring spacer adjacent to an outer ring, and a heat flux sensor provided in an inside surface of the outer-ring spacer. A distance in a direction along the rotation axis from a center of the bearing to a center of the heat flux sensor is longer than 0.5 time and shorter than one time of a dimension of the bearing in the direction along the rotation axis.
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
B23Q 1/70 - Stationary or movable members for carrying working-spindles for attachment of tools or work
B23Q 11/12 - Arrangements for cooling or lubricating parts of the machine
F16C 19/52 - Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
F16C 19/54 - Systems consisting of a plurality of bearings with rolling friction
F16C 33/66 - Special parts or details in view of lubrication
B60N 2/16 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
75.
SILICON NITRIDE SINTERED BODY, ROLLING ELEMENT USING THE SAME, AND BEARING
To provide: a silicon nitride sintered body having excellent mechanical property, in particular fracture toughness, and having long lifetime of a product into which the silicon nitride sintered body is processed; a rolling element using the silicon nitride sintered body; and a bearing. The silicon nitride sintered body contains a rare earth element and an aluminum element. The silicon nitride sintered body contains 6-13 wt % of the rare earth element in terms of oxide, and 6-13 wt % of the aluminum element in terms of oxide, relative to the total weight of the silicon nitride sintered body. The silicon nitride sintered body contains an inclusion (I) in a surface layer portion that is a region within 2 mm from a surface of the silicon nitride sintered body. A ratio of a total sectional area of the inclusion (I) to a total sectional area of the surface layer portion is 0.05% or more.
C04B 35/584 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on silicon nitride
C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
A spherical surface link mechanism includes a proximal end link hub, a distal end link hub, a plurality of links, a plurality of intermediate link hubs, and a shaft member. Each of the plurality of links includes a first end link member, a second end link member, and an intermediate link member. The first end link member is coupled, at one end, to the proximal end link hub to be rotatable about a first rotation axis. The second end link member is coupled, at one end, to the distal end link hub to be rotatable about a second rotation axis. The intermediate link member is coupled, at one end, to the other end of the first end link member to be rotatable about a third rotation axis and is coupled to, at the other end, the other end of the second end link member to be rotatable about a fourth rotation axis.
B25J 11/00 - Manipulators not otherwise provided for
F16H 21/48 - Gearings comprising primarily only links or levers, with or without slides with movements in three dimensions for conveying rotary motion
F16H 21/54 - Gearings comprising primarily only links or levers, with or without slides with movements in three dimensions for conveying or interconverting oscillating or reciprocating motions
A ball bearing is provided which includes a cage circular annular portion and a seal member. The cage circular annular portion has a cage-side sliding contact surface axially opposed to the seal member and configured to come into sliding contact with the seal member. The seal member has a seal-side sliding contact surface configured to come into sliding contact with the cage-side sliding contact surface. A plurality of axial protrusions each having an axially convex circular arc shape in cross sections along a circumferential direction are formed on one of the cage-side sliding contact surface and the seal-side sliding contact surface at constant pitches in the circumferential direction.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A link actuation device includes a proximal link hub, a distal link hub, link mechanisms that couple the link hubs, an actuator, and a control device. The actuator includes motors provided for link mechanisms, respectively. The control device stores a map in which drive command values for each of the motors corresponding to a plurality of discrete positions within a movable range of the distal link hub are stored. Upon receipt of a command value for movement to a position that coincides with none of the plurality of positions within the movable range, the control device determines a drive command value for each of the motors by interpolating a region surrounded by four points at the plurality of positions on the map using a polynomial curved surface formula.
Provided is a bearing device for a vehicle wheel comprising: an outer-side seal that is resistant to deterioration over time and can prevent foreign matter. This bearing device for a vehicle wheel comprises an outer-side seal member 7 that closes an outer-side opening end of an annular space formed by an outer ring 2 and a hub ring 3. The outer-side seal member 7 including a core metal 8 which is fitted to the outer ring 2, a seal member 10 which is joined to the core metal 8, and a metal ring 9 which is fitted to the hub ring 3 and with which the seal member 10 is in sliding contact. An annular space S is provided between the metal ring 9 and the hub ring 3, and the annular space S being filled with a sealing material 20.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
F16J 15/3232 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
F16J 15/3256 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
F16J 15/3276 - Mounting of sealing rings with additional static sealing between the sealing, or its casing or support, and the surface on which it is mounted
F16J 15/40 - Sealings between relatively-moving surfaces by means of fluid
An operation device including a combination of a rotation unit and a linear motion unit. The rotation unit includes a link actuation apparatus and a rotation actuator. The link actuation apparatus includes a proximal end side-link hub, and a distal end side-link hub coupled thereto through three or more link mechanisms so as to enable a varying attitude relative thereto. The link actuation apparatus is mounted to an output shaft of the rotation actuator such that a central axis of the proximal end side-link hub forms an angle relative to an axis of rotation of the rotation actuator. The linear motion unit includes a linear actuator serving as an output portion thereof, and the rotation unit is mounted to this linear actuator.
A bearing device includes an inner ring and an outer ring. At least one of the radially inner surface of the inner ring and the radially outer surface of the outer ring is covered with a coating layer. The coating layer is a coating layer composite composed of a plurality of layers. Of the plurality of layers, the surface layer is composed of an anti-creep film having lubricity, and at least one layer other than the surface layer is composed of an insulating film having insulating properties.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 19/52 - Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
Provided is a rotational torque inspection method for a bearing device for vehicle wheel that enables detection of an abnormality in a component or step occurring midway in the manufacturing of the wheel bearing device. This rotational torque inspection method for a wheel bearing device 1 comprises: a press-fitting step S02; a post-press-fitting rotational torque measurement step S04 for measuring a rotational torque T1 of the wheel bearing device 1 when, after the press-fitting step S02, the hub ring 3 and the inner ring 4 that are inner members and an outer ring 2 that is an outer member are rotated in a relative manner; and a post-press-fitting rotational torque determination step S05 for determining the fitness of the rotational torque T1 by whether or not the rotational torque T1 measured in the post-press-fitting rotational torque measurement step S04 is within a range of standard values S1.
B23P 19/02 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
Provided is a vehicle posture control device configured to be installed in a vehicle provided with an actuator configured to generate a roll moment. The device includes a roll moment calculator (24) and an actuator controller (25). The roll moment calculator (24) is configured to calculate a roll moment command value to control the actuator such that a roll motion is generated in conjunction with a yaw motion in the vehicle (1) during turning thereof. The roll moment calculator (24) is configured to calculate the roll moment command value for output, on the basis of a sideslip angular velocity and a vehicle velocity of the vehicle. The actuator controller (25) is configured to control the actuator by using the calculated roll moment command value.
A bearing apparatus includes two bearings that rotatably support a main spindle, a spacer arranged between the two bearings, and a communication module arranged in the spacer. The bearing includes an inner ring and an outer ring made of a metal and a plurality of rolling elements arranged between the inner ring and the outer ring. The communication module contains a plurality of sensors and a communication apparatus that wirelessly transmits a result of detection by the sensors. An outer dimension of the inner ring of the bearing is set to be smaller than an inner dimension of the outer ring of the bearing. The rolling element is made of silicon nitride through which electromagnetic waves can pass.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
85.
PRELOAD INSPECTION METHOD FOR BEARING DEVICE FOR VEHICLE WHEEL
The rotational torque inspection method for a bearing device comprises: a press-fitting step (S02); a first bearing preload value calculation step (S03) for calculating a first bearing preload value (P1); a post-press-fit rotational torque measurement step (S05) for measuring a post-press-fit rotational torque (Ta); a crimping step (S06) for crimping the small diameter step part to the inner ring; a post-crimping rotational torque measurement step (S07) for measuring a post-crimping rotational torque (Tb); a second bearing preload value calculation step (S08) for calculating a second bearing preload value (P2); and a determination step (S09) for determining the suitability of the preload depending on whether or not the second bearing preload value (P2) is within a range of a reference value.
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 1/26 - Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
86.
Method for forming coating film on constant velocity universal joint
A coating film having excellent adhesion, even without the presence of a chemical conversion film treatment as an undercoat, and a metal automotive part having the coating film. A powder is deposited by powder-coating onto the surface of a metal automotive part that has been quenched after simultaneously forging, and tempering the metal automotive part and bake-hardening the deposited powder to form a skin film on the surface of the metal automotive part. The surface of the metal automotive part before the powder is powder-coated thereon is a work-hardened material surface that has not been subjected to a chemical conversion filming treatment.
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
B05D 1/04 - Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
B05D 7/14 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
F16D 3/20 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
C21D 1/18 - HardeningQuenching with or without subsequent tempering
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
87.
Containerized mobile wind power generation apparatus
A linear-motion guiding device is disposed on the wall of the container. The wind turbine includes, at the lower end of the support column, a support-column lower end member capable of being fixed to the linear-motion guiding device. A slider of the linear-motion guiding device is provided with a guide member, and a bolt is inserted through a bolt insertion hole in the support-column lower end member and is screwed into a threaded hole in the guide member. The apparatus includes an attachment guide part including a stepped bolt and a flanged step part, the attachment guide part being configured to guide the support-column lower end member to a position and an attitude in which the bolt insertion hole in the support-column lower end member is aligned with the threaded hole in the guide member when the support-column lower end member is not fixed to the slider.
A tripod type constant velocity universal joint includes an outer joint member having three track grooves each including roller guide surfaces opposing each other in a circumferential direction of each of the track grooves, a tripod member including three leg shafts, and roller units each including a roller and an inner ring to support the roller. An outer peripheral surface of the roller has a partially spherical surface having a curvature center on an axis of each of the leg shafts. The roller guide surfaces are each formed of a partially cylindrical surface having a curvature center on a horizontal line passing an intersection of a pitch circle of the track grooves and a center line of each of the track grooves, and when no torque is applied to the joint, an end portion of the outer peripheral surface of the roller abuts against the roller guide surfaces.
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
F16C 35/04 - Rigid support of bearing unitsHousings, e.g. caps, covers in the case of ball or roller bearings
Provided is a tapered roller bearing (1) for which a dimensionless number X is defined by the following formula (1) based on a small-diameter-side gap S1 which is a gap between a small-diameter-side annular part (6) of a retainer (5) and a small collar part (2b) of an inner ring (2), a large-diameter-side gap S2 which is a gap between the large-diameter-side annular part (7) and a large collar part (2c) of the inner ring (2), an average roller diameter d, a roller length l, and an outer member angle α. The dimensionless number X falls within a range of 0.69
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
A clutch unit includes an operation lever, an operation bracket, an output shaft member, an input-side clutch, an output-side clutch, and a housing. An input-side outer ring member of the input-side clutch is a member including a bottom part and an outer ring part. A part of the outer ring part is a thick part. The thickness of the thick part in the radial direction is larger than the thickness of a non-thick part in the radial direction.
B60N 2/16 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
B60N 2/90 - Details or parts not otherwise provided for
F16D 15/00 - Clutches with wedging balls or rollers or with other wedgeable separate clutching members
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
F16C 33/36 - RollersNeedles with bearing-surfaces other than cylindrical, e.g. taperedRollersNeedles with grooves in the bearing surfaces
A sealed rolling bearing includes slingers and seal members disposed between an inner ring and an outer ring, and sealing a rolling element installation area. The radially inner and outer portions of each slinger are bent axially inwardly such that a labyrinth portion is defined between the radially outer bent portion of the slinger and the radially inner surface of the outer ring, the labyrinth portion having a path length, in the axial direction of the bearing, longer than the material thickness of the slinger.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
Provided is a vehicle power device (1) including: a wheel bearing (2); and a driving motor (3) that can rotationally drive an outer ring (4) as a rotary ring. The vehicle power device further includes a bracket (24) attached to a knuckle (8) of a vehicle. The bracket (24) includes a bracket base portion (24a) and a bracket cylindrical portion (24b), the bracket base portion interposed between the knuckle (8) and an inner ring (5) wherein the inner ring (5) is removably fixed, the bracket cylindrical portion (24b) extending from the bracket base portion (24a) toward an outboard side. The driving motor (3) includes a stator (18) removably attached to an inner periphery of the bracket cylindrical portion (24b) and a rotor (19) attached to the outer ring (4) on an inner periphery of the stator (18).
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
94.
VEHICLE POWER DEVICE AND WHEEL BEARING WITH GENERATOR
Provided is a vehicle power device including: an inner ring as a fixed ring, an outer ring as a rotary ring which is an outer ring rotation, and a bracket a knuckle for fixing an inboard side end portion of the inner ring removably with the electric motor disposed. The electric motor is of an outer rotor motor type, and the bracket includes a bracket base portion and a bracket cylindrical portion, the bracket base portion for being attached to the knuckle and fixed to the inner ring, the bracket cylindrical portion which extends from the bracket base portion toward an outboard side is located on an outer periphery of the outer ring via a radial gap and is provided with a stator disposed on an outer peripheral surface. The rotor of the electric motor is removably attached to the wheel mounting flange via a rotor casing.
To provide a rotor for electric water pumps in which a sliding bearing formed of a thermoplastic resin composition can be produced at a low cost and has superior low friction and low wear property, and an inner diameter of the sliding bearing is hardly contracted by the insert-molding. A rotor 1 used for electric water pumps has a main body 2 that supports an impeller of the pump, a sliding bearing 3 that rotatably supports a shaft, and a magnet 4 disposed to face a stator. The sliding bearing 3 is an annealing treated body of a polyphenylene sulfide resin composition. The polyphenylene sulfide resin composition contains 5-30 vol % of carbon fiber, 1-20 vol % of polytetrafluoroethylene resin and 1-30 vol % of graphite relative to the whole volume of the polyphenylene sulfide resin composition. The main body 2 is an injection-molded body disposed by insert-molding a thermoplastic resin composition, which is different from the polyphenylene sulfide resin composition, at an outer diameter side of the sliding bearing 3.
To provide a grease composition that is capable of effectively preventing an early-flaking caused by hydrogen embrittlement, and a grease-sealed bearing in which the grease composition is sealed. A grease composition 7 contains a base oil, a thickener, and an additive. The additive contains sodium molybdate, and zinc alkyldithiophosphate having a 1-30 C primary alkyl group. The grease composition contains 0.1-5 mass % of the sodium molybdate relative to the whole of the grease composition. The grease composition contains 0.1-5 mass % of the zinc alkyldithiophosphate relative to the whole of the grease composition.
A bearing device includes: a magnetic ring fixed to an inner ring; and a stator fixed to an outer ring so as to face magnetic ring. Magnetic ring and stator constitute a claw pole type generator. Stator includes a coil and a magnetic yoke surrounding coil. The magnetic yoke is configured by combining a first member and a second member that are magnetic bodies. First member and second member have an identical shape. Each of first member and second member has a plurality of second claws arranged in a comb shape. A plurality of first claws of first member and the plurality of second claws of second member are alternately arranged on a surface facing magnetic ring.
A liquid material application unit includes an application needle and an application liquid container. The application liquid container includes a joining section and a needle movement section. The joining section extends in a horizontal direction. The needle movement section extends, in a vertical direction, from the joining section. A protrusion amount by which the application needle is allowed to protrude from a through-hole of the application liquid container in the vertical direction is greater than or equal to 1 mm and less than or equal to 3 mm. A first width of the needle movement section in the horizontal direction is less than or equal to 5 mm. A length of the needle movement section extending from the joining section to the through-hole in the vertical direction is greater than or equal to 5 mm.
B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work
B05D 1/26 - Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
99.
METHOD FOR GRIPPING CONSTANT-VELOCITY UNIVERSAL JOINT COMPONENT
Provided is a gripping method including: a phase matching step of matching tool relief grooves of a contact metal member and track grooves of a constant velocity universal joint component with each other in phase; a measuring step of measuring phase differences between the track grooves of the constant velocity universal joint component and a female spline of the constant velocity universal joint component; a matching step of matching, based on a result of the measuring step, a stopper with a recessed portion of the female spline having the smallest phase difference and gripping the constant velocity universal joint component by a collet chuck. Under a state in which the constant velocity universal joint component is gripped by the collet chuck, the contact metal member holds the constant velocity universal joint component.
A fixed type constant velocity universal joint includes an outer joint member, an inner joint member, eight balls, and a cage. The fixed type constant velocity universal joint has a ball retaining mechanism. A ratio of an axial length from a joint center to an opening-side end surface of the outer joint member to a diameter of each of the balls is within a range of 0.35 to 0.52. A ratio of a width of the cage to the diameter of each of the balls is within a range of 1.63 to 1.80. The ball retaining mechanism includes a cylindrical shaft portion at an end portion of a shaft and an angle restriction stopper surface of the outer joint member.
F16D 3/2245 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a sphere where the groove centres are offset from the joint centre
F16D 3/84 - Shrouds, e.g. casings, coversSealing means specially adapted therefor
patents
