Title:
BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/026978
Kind Code:
A1
Abstract:
This bearing device uses rolling bearings to support a vehicle drive motor, or a rotation shaft included in the transmission connected to the vehicle drive motor, with respect to a housing. The bearing device suppresses bearing ring costs while avoiding reduction in insulation film reliability or the mass producibility of bearing rings of the rolling bearings. To this end, the rolling bearing (1) has a bearing ring (3) which is attached to a rotation shaft (21) or a housing (10), a fitting surface (3b) of one bearing ring (3) that fits with the one member (10) is formed from an insulation film (7), and the fitting surface (3b) and the housing (10) have a clearance fit.
Inventors:
KAWAGUCHI HAYATO (JP)
Application Number:
PCT/JP2022/031367
Publication Date:
March 02, 2023
Filing Date:
August 19, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/62; F16C19/06; F16C19/52; F16C35/063; F16C35/067
Foreign References:
| JP2014234901A | 2014-12-15 | |||
| JP2007292119A | 2007-11-08 | |||
| JP2012219850A | 2012-11-12 | |||
| JP2007292114A | 2007-11-08 | |||
| JP2012202487A | 2012-10-22 | |||
| JP2009191895A | 2009-08-27 | |||
| JP2015209562A | 2015-11-24 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
Download PDF: