Title:
BEARING DEVICE AND SPINDLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/210561
Kind Code:
A1
Abstract:
This bearing device (30) comprises: at least one bearing (5) including a stationary ring, a rotating ring, and a rolling body; a first member disposed on a path on which pressing force that generates a preload between the rolling body and the raceway surfaces of the stationary ring and the rotating ring is propagated; a first load weight sensor (501) disposed on the first member; a second member disposed so as to abut an end surface of the stationary ring on a path on which pressing force is not propagated; and a second load weight sensor (502) disposed on the second member. Thereby, a spindle device and a bearing device such that it is possible to accurately measure a preload of a bearing with a simple configuration are provided.
Inventors:
FUKUSHIMA YASUYUKI (JP)
KOIKE TAKASHI (JP)
SHIBUYA YUSUKE (JP)
KOIKE TAKASHI (JP)
SHIBUYA YUSUKE (JP)
Application Number:
PCT/JP2022/015064
Publication Date:
October 06, 2022
Filing Date:
March 28, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C25/08; F16C35/07; F16C35/12; F16C41/00; F16C43/04
Domestic Patent References:
| WO2022065199A1 | 2022-03-31 |
Foreign References:
| JP2020003385A | 2020-01-09 | |||
| JP2001254742A | 2001-09-21 | |||
| JP2004084737A | 2004-03-18 | |||
| JPH01158818U | 1989-11-02 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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