Title:
ROLLING BEARING
Document Type and Number:
Japanese Patent JP2014129827
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent the impairment of the sealing performance of a seal ring having a filter and to extend the life of the seal ring.SOLUTION: In the rolling bearing, an opening in at least one end of a bearing space formed between an outside bearing ring 11 and an inside bearing ring 12 is covered with a resin seal ring 20, a filter 23 is provided in an oil passage hole 22 formed in the seal ring 20 and traps foreign matters included in lubricating oil. The seal ring 20 has convex locking parts 21 at a plurality of peripheral positions on the inner diameter part, and the inside bearing ring 12 has concave parts 30 in the outer periphery part, engaging with the locking parts 21. To the seal ring 20, an annular member 40 is fixed which is made of material softer than the seal ring 20. The annular member 40 constitutes a lip part 41 which is opposed to or abuts on the outside bearing ring 11 at a clearance therefrom. The seal ring 20 is injection molded, and a weld line w formed during the injection molding is arranged in a circumferential azimuth direction of an axis where the oil passage hole 22 does not exist.
Inventors:
SHIMIZU YASUHIRO
YAMAUCHI KIYOSHIGE
YAMAMOTO NAOTA
MIYAZAKI HIROYUKI
YAMAUCHI KIYOSHIGE
YAMAMOTO NAOTA
MIYAZAKI HIROYUKI
Application Number:
JP2012286770A
Publication Date:
July 10, 2014
Filing Date:
December 28, 2012
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C33/78; B29C45/26; B29C45/76; F16C33/58; F16C43/04
Domestic Patent References:
JP2012211692A | 2012-11-01 | |||
JP2006007684A | 2006-01-12 | |||
JPH03180313A | 1991-08-06 | |||
JP2011190860A | 2011-09-29 | |||
JP2011052784A | 2011-03-17 | |||
JP2006070926A | 2006-03-16 | |||
JP2004132419A | 2004-04-30 | |||
JP2003231156A | 2003-08-19 | |||
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JP2005337381A | 2005-12-08 | |||
JP2008064157A | 2008-03-21 |
Foreign References:
WO2006123795A1 | 2006-11-23 |
Attorney, Agent or Firm:
Bunji Kamada
Takayoshi Tagawa
Higashio Masahiro
Yaichiro Nakatani
Takashi Shimizu
Takayoshi Tagawa
Higashio Masahiro
Yaichiro Nakatani
Takashi Shimizu