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Found results for
 patents
1.
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Bearing apparatus having concentric inner and outer roller bearings and information recording/reproducing apparatus
| Application Number |
13598825 |
| Grant Number |
08630062 |
| Status |
In Force |
| Filing Date |
2012-08-30 |
| First Publication Date |
2013-03-07 |
| Grant Date |
2014-01-14 |
| Owner |
- Seiko Instruments Inc. (Japan)
- Seiko Instruments (Thailand) Ltd. (Japan)
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| Inventor |
- Shimizu, Sumio
- Smith, Robert Gordon
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Abstract
An inner race of a first rolling bearing is fixed to a shaft, and an outer race thereof is fixed to an inner race of a second rolling bearing. In the first bearing, the outer race and rolling elements contact each other on the side of a center of the rolling elements closer to one end side in an axial direction, and the inner race and the rolling elements contact each other on the side of the center of the rolling elements closer to the other end side in the axial direction. In the second bearing, an outer race and rolling elements contact each other on the side of a center of the rolling elements closer to the one end side, and the inner race and the rolling elements contact each other on the side of the center of the rolling elements closer to the other end side.
IPC Classes ?
- G11B 17/08 - Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records
- F16C 19/04 - 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
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2.
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Bearing device and information recording and reproducing apparatus
| Application Number |
12660737 |
| Grant Number |
08345386 |
| Status |
In Force |
| Filing Date |
2010-03-03 |
| First Publication Date |
2010-09-09 |
| Grant Date |
2013-01-01 |
| Owner |
Seiko Instruments (Thailand) Ltd. (Japan)
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| Inventor |
- Smith, Robert Gordon
- Sornsiri, Virat
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Abstract
A bearing device has a sleeve that encircles a shaft, and two side-by-side roller bearings rotatably support the sleeve coaxially on the shaft. A spacer portion protrudes radially inwardly from the sleeve and extends between the two roller bearings. The sleeve axially overlaps a minor portion of one roller bearing but does not overlap a race surface thereof, and the sleeve axially overlaps a major portion of the other roller bearing including a race surface thereof.
IPC Classes ?
- G11B 5/55 - Track change, selection, or acquisition by displacement of the head
- G11B 21/08 - Track changing or selecting
- F16C 19/12 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly for supporting the end face of a shaft or other member, e.g. footstep bearings
- F16C 35/12 - Rigid support of bearing unitsHousings, e.g. caps, covers for spindles with ball or roller bearings
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