Title:
ROLLER BEARING
Document Type and Number:
WIPO Patent Application WO/2013/108672
Kind Code:
A1
Abstract:
A seal lip part (9) includes a lip main body part (9a) and a protruding portion (16) that protrudes in the radial direction from the circumferential edge of the lip main body part (9a) and makes sliding contact with an inner ring (1). The protruding portion (16) comprises a high-abrasion material which exhibits a light degree of contact such that the protruding portion (16) is abraded so as to be not in contact or such that the contact pressure can be considered to be zero, when the bearing is used in a state of rotation. A fitting portion (13), which is fitted into a seal attachment groove (2b) of a seal member main body (8), is formed with a concomitant-rotation-preventing fitted shape, such that when the protruding portion (16) makes sliding contact, the fitting portion does not generate movement in the circumferential direction due to concomitant rotation with respect to the outer ring (2).
Inventors:
SASAKI KATSUAKI (JP)
KAGEYAMA KYOUHEI (JP)
KAGEYAMA KYOUHEI (JP)
Application Number:
PCT/JP2013/050143
Publication Date:
July 25, 2013
Filing Date:
January 09, 2013
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/78; F16C19/06
Foreign References:
| JP2011141000A | 2011-07-21 | |||
| JPH10131974A | 1998-05-22 | |||
| JP2010261545A | 2010-11-18 | |||
| JPH11325091A | 1999-11-26 | |||
| JPH07238942A | 1995-09-12 | |||
| JP2010112472A | 2010-05-20 |
Other References:
See also references of EP 2806179A4
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)
Shuji Sugimoto (JP)
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Claims: