Title:
ROLLING BEARING
Document Type and Number:
WIPO Patent Application WO/2017/047770
Kind Code:
A1
Abstract:
The present invention pertains to a rolling bearing (101) comprising: an inner race (102) and an outer race (103) which constitute the bearing ring; a plurality of rolling elements (104) interposed between the inner and outer races; a cage (105) which holds the rolling elements (104); and grease (113) packed into the internal spaces of the bearing. A grease holding body comprising a fibrous material or a porous material is formed on at least one among the inner diameter surface or the outer diameter surface of the cage (105) on regions (105a, etc.) excluding the regions (105b) facing shoulder parts (102b, 103b) of the inner race. The grease holding body is not formed in said regions (105b). The present invention thus enables the use of a simple means to improve lubrication characteristics, including lowering torque, without negatively impacting torque.
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Inventors:
OBATA TOMOHIKO (JP)
FUJIWARA HIROKI (JP)
KAWAMURA MITSUO (JP)
FUJIWARA HIROKI (JP)
KAWAMURA MITSUO (JP)
Application Number:
PCT/JP2016/077497
Publication Date:
March 23, 2017
Filing Date:
September 16, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/41; F16C19/06; F16C33/66
Foreign References:
| JPS5540306A | 1980-03-21 | |||
| JP2012107688A | 2012-06-07 | |||
| JPS61175200A | 1986-08-06 | |||
| JPH0571540A | 1993-03-23 | |||
| JPH04160224A | 1992-06-03 | |||
| JPH11264417A | 1999-09-28 | |||
| JPH08303468A | 1996-11-19 |
Attorney, Agent or Firm:
WAKI, Hikaru et al. (JP)
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