Title:
軸受装置、スピンドル装置、軸受、および間座
Document Type and Number:
Japanese Patent JP7411405
Kind Code:
B2
Abstract:
A bearing device (30) includes: at least one bearing (5) that has a rolling element and a raceway surface to support a main shaft (4); a member (6 or 5ga) disposed on a path through which pressing force generating a preload between the rolling element and the raceway surface is transmitted; and at least one load sensor element (50) fixed to the member (6 or 5ga) to measure the pressing force. At least one load sensor element (50) is a chip component including a thin film pattern (52) of which resistance changes according to the pressing force and a protective layer (54) that insulates and protects thin film pattern (52).
Inventors:
Takashi Koike
Yasuyuki Fukushima
Yusuke Shibuya
Daichi Kondo
Yasuyuki Fukushima
Yusuke Shibuya
Daichi Kondo
Application Number:
JP2019231814A
Publication Date:
January 11, 2024
Filing Date:
December 23, 2019
Export Citation:
Assignee:
ntn corporation
International Classes:
G01L5/00; F16C25/08; F16C35/077; F16C35/12; F16C41/00; G01L5/1627
Domestic Patent References:
| JP2005265175A | ||||
| JP2010180982A | ||||
| JP2009115284A | ||||
| JP2012108025A | ||||
| JP9229059A | ||||
| JP2007271005A | ||||
| JP2007032705A | ||||
| JP2008298583A |
Foreign References:
| US20030164050 | ||||
| US20120128287 | ||||
| US20190010987 | ||||
| DE102015217139A1 | ||||
| DE102009005888A1 |
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office