Title:
ALUMINA THERMAL-SPRAYED BEARING
Document Type and Number:
WIPO Patent Application WO/2023/054182
Kind Code:
A1
Abstract:
Provided is a bearing which not only exhibits excellent adhesiveness between a bearing constituent member and a thermal-sprayed coating, but also suppresses damage to the bearing by electric corrosion. This bearing has a thermal-sprayed coating 6 disposed on a surface of a bearing constituent member 7 and a communication hole 8 communicating from an outer surface of the thermal-sprayed coating 6 to a surface of the bearing constituent member 7, wherein: the thermal-sprayed coating 6 is formed from a thermal-spray powder containing alumina particles as a main ingredient and metal oxide particles other than the alumina particles; the thermal-sprayed coating 6 has a porosity of less than 15%; and the communication hole 8 is a hole having an average hole diameter of less than 30 µm, the entirety or a portion of the communication hole 8 being sealed to the surface of the bearing constituent member 7 with a hole-sealing material 13 containing an epoxy group-containing component.
Inventors:
TANAKA YUTAKA (JP)
Application Number:
PCT/JP2022/035439
Publication Date:
April 06, 2023
Filing Date:
September 22, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
C23C4/11; C23C4/18; F16C19/06; F16C33/62
Foreign References:
| JP2020056094A | 2020-04-09 | |||
| JP2008007817A | 2008-01-17 | |||
| JP2018162883A | 2018-10-18 | |||
| JP2015230058A | 2015-12-21 | |||
| JP2015209562A | 2015-11-24 |
Attorney, Agent or Firm:
WAKI Hikaru et al. (JP)
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