Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BEARING DEVICE FOR SUPPORTING PINION SHAFT
Document Type and Number:
WIPO Patent Application WO/2005/057030
Kind Code:
A1
Abstract:
A bearing device for supporting a pinion shaft, wherein a pair of roller bearings axially arranged parallel with each other for rotatably supporting the pinion shaft on a case are installed between a pinion gear fitted to one end of the pinion shaft and a companion flange fitted onto the other end thereof. A skew contact ball bearing is used for the roller bearing on the companion flange side. Where the radius of curvature of the inner ring raceway track of that roller bearing is Ri, the radius of curvature of the outer ring raceway track thereof is RO, and the diameter of the balls thereof is Bd, the relation of the equations Ri < R0, 0.502 x Bd < Ri < 0.512 x Bd, and 0.510 x Bd < RO < 0.520 x Bd can be established.

More Like This:
Inventors:
KAWAMURA MOTOSHI (JP)
AKIYAMA MUNEYASU (JP)
TACHI HIROSHI (JP)
Application Number:
PCT/JP2003/015854
Publication Date:
June 23, 2005
Filing Date:
December 11, 2003
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KOYO SEIKO CO (JP)
KAWAMURA MOTOSHI (JP)
AKIYAMA MUNEYASU (JP)
TACHI HIROSHI (JP)
International Classes:
F16C19/16; F16C19/18; F16C19/54; F16C33/78; F16C35/06; F16H57/021; F16H57/037; F16H48/42; (IPC1-7): F16C19/18; F16C33/32; F16C33/58; F16C33/66; F16C33/78; F16H57/02
Foreign References:
DE2833362A11980-02-07
JPH109258A1998-01-13
JPH109259A1998-01-13
JP2000046060A2000-02-15
JP2003254326A2003-09-10
JP2000002239A2000-01-07
JP2003278765A2003-10-02
JP2003120696A2003-04-23
JPH0586026U1993-11-19
JP2003172341A2003-06-20
JPH11153005A1999-06-08
JPH09105450A1997-04-22
JPH10220468A1998-08-21
Other References:
See also references of EP 1693581A4
Attorney, Agent or Firm:
Okada, Kazuhide (13-38 Naniwa-cho, Kita-k, Osaka-shi Osaka, JP)
Download PDF: