Claims
- 1. A preload-controllable bearing apparatus, wherein a predetermined preload is applied thereto by way of press-inserting, comprising:a shaft, a first bearing f ormed by an outer race, a first inner ring, and first balls between the outer race and the first inner ring, a second bearing formed by said outer race, a second inner ring, and second balls between the outer race and the second inner ring, the outer race and the inner rings each being formed with a groove in contact with the balls therein so as to prevent the outer race and the inner rings from being separated from each other, the first and second bearings being placed under the preload set by a load applied thereto through the first inner ring, the outer race, and the second inner ring, the first inner ring being fixed to the shaft, the second inner ring being fitted onto the shaft with an interference such that the second inner ring can be displaced along the shaft by the load to set the preload, wherein the interference produces a resistance against the second inner ring when displaced such that the resistance is larger than the reaction load caused by the preload.
- 2. A preload-controllable bearing apparatus, wherein a predetermined preload is applied thereto by way of pressinserting, comprising:a shaft, an outer race containing a first outer raceway and a second outer raceway, a first bearing formed by said first outer raceway, a first inner ring, and first balls between the first outer raceway and the first inner ring, a second bearing formed by said second outer raceway, a second inner ring, and second balls between the second outer raceway and the second inner ring, the outer race and the inner rings each being formed with a groove in contact with the balls therein so as to prevent the outer race and the inner rings from being separated from each other, the first and second bearings being placed under the preload set by a load applied thereto through the first inner ring, the outer race, and the second inner ring, the first inner ring being fixed to the shaft, and the second inner ring being fitted onto the shaft with an interference such that the second inner ring can be displaced along the shaft by the load to set the preload without returning when the load is removed.
Priority Claims (1)
Number |
Date |
Country |
Kind |
5-163293 |
Jun 1993 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation of application Ser. No. 08/254,589, now U.S. Pat. No. 5,509,198, filed Jun. 6, 1994, which in turn is a Continuation-in-part of Ser. No. 08/020,533, filed Feb. 22, 1993, now U.S. Pat. No. 5,341,569.
US Referenced Citations (8)
Foreign Referenced Citations (6)
Number |
Date |
Country |
36 06 042 |
Sep 1986 |
DE |
748198 |
Apr 1956 |
GB |
57-140912 |
Aug 1982 |
JP |
60-196024 |
Dec 1985 |
JP |
2-76647 |
Mar 1990 |
JP |
2-159536 |
Jun 1990 |
JP |
Continuations (1)
|
Number |
Date |
Country |
Parent |
08/254589 |
Jun 1994 |
US |
Child |
08/620541 |
|
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
08/020533 |
Feb 1993 |
US |
Child |
08/254589 |
|
US |