Title:
HOLDER AND TAPERED ROLLER BEARING
Document Type and Number:
WIPO Patent Application WO/2017/033977
Kind Code:
A1
Abstract:
A pillar part (42) of a holder includes: guide surfaces (42c) which make contact with tapered roller bearings (30) in the circumferential direction; and first recessed surfaces (42d) and second recessed surfaces (42e) for reducing oil stirring resistance and shear resistance, the recessed surfaces being formed in a notched shape recessed in the circumferential direction from the guide surfaces (42c). Further, the contact length between a rolling surface center section (31a) and the guide surface (42c) is suppressed by forming the guide surfaces (42) in a smooth middle convexity shape in the roller direction of the tapered roller bearings (30).
Inventors:
KAWAI TAKASHI (JP)
Application Number:
PCT/JP2016/074688
Publication Date:
March 02, 2017
Filing Date:
August 24, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/54; F16C19/36; F16C33/36; F16C33/66
Foreign References:
| JPS5357148U | 1978-05-16 | |||
| JP2014005846A | 2014-01-16 | |||
| JP2007078147A | 2007-03-29 | |||
| JP2007024170A | 2007-02-01 | |||
| JP4949652B2 | 2012-06-13 | |||
| JP2015059648A | 2015-03-30 | |||
| JP2013079706A | 2013-05-02 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
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