Title:
ROLLING BEARING FOR USE IN EXTREMELY LOW-TEMPERATURE ENVIRONMENT
Document Type and Number:
WIPO Patent Application WO/2017/078151
Kind Code:
A1
Abstract:
A rolling bearing (A) for use in an extremely low-temperature environment rotatably holds a plurality of rolling elements (4) between an inner ring (1) and an outer ring (2) such that separator-type holder pieces (3) made from a fluorine-based resin material are interposed between the adjacent rolling elements (4), wherein: the holder pieces (3) are each provided with linear-shaped protruding portions (3a) protruding by such a height as to make contact with an inner ring raceway surface (1a); a plurality of segments each formed by integrally connecting at least one of the holder pieces (3) through side plate pieces (5) are provided; the plurality of segments are locked by a ring spring (6) the diameter of which is elastically expanded; and the protruding portions (3a) are brought into pressure-contact with the inner ring raceway surface (1a) by elastic force due to contraction of the diameter of the ring spring (6).
Inventors:
SUZUKI KOUSUKE (JP)
Application Number:
PCT/JP2016/082834
Publication Date:
May 11, 2017
Filing Date:
November 04, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/44; F16C19/06; F16C33/62; F16C33/66
Foreign References:
| JPH0949525A | 1997-02-18 | |||
| JP2015096768A | 2015-05-21 | |||
| DE4133813A1 | 1993-04-22 | |||
| JP2000205279A | 2000-07-25 | |||
| JP2013257002A | 2013-12-26 | |||
| JPS5813230A | 1983-01-25 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
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