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公开(公告)号:US12000435B2
公开(公告)日:2024-06-04
申请号:US17438385
申请日:2020-03-11
Applicant: THE SCHOOL CORPORATION KANSAI UNIVERSITY , NTN CORPORATION
Inventor: Hiroshi Tani , Hiroyuki Hakamata , Yusuke Shibuya , Sota Yamaguchi
IPC: F16C41/00
CPC classification number: F16C41/007 , F16C41/004
Abstract: A rolling bearing according to an embodiment includes a stationary ring having a first facing surface, a rotating ring having a second facing surface facing the first facing surface, and rotating relative to the stationary ring, rolling elements arranged between the first facing surface and the second facing surface, a cage that retains the rolling elements, first electrodes and second electrodes fixed in position relative to the stationary ring and arranged in a bearing space between the stationary ring and the rotating ring, third electrodes fixed in position relative to the rotating ring, position relative to the rolling elements, or position relative to the cage and arranged in the bearing space, and an insulating film formed on surfaces of the first electrodes and the second electrodes or surfaces of the third electrodes.
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公开(公告)号:US09976874B2
公开(公告)日:2018-05-22
申请号:US14904223
申请日:2014-07-02
Applicant: NTN CORPORATION
Inventor: Toru Takahashi , Tatsuo Nakajima , Hiroyuki Hakamata , Ikuo Uemoto , Shinji Miyazaki , Takuji Harano , Takayuki Oda
CPC classification number: G01D5/14 , G01D5/24438 , G01D5/2452 , G01D5/246
Abstract: A magnetic encoder device (3) of the present invention includes a base portion (33) having a mounting surface (33b) for mounting to a rotary shaft (2), a cored bar (35) fitted and fixed over the base portion (33), and a double-row magnetic encoder track (30) formed on the cored bar (35). Through movement of each of magnetic poles of the magnetic encoder track (30) over a region opposed to a magnetic sensor (4), an angle of the rotating rotary shaft is detected. The base portion (33) is formed of a sintered metal, and the mounting surface (33b) is subjected to sizing.
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