Title:
SLIDING-TYPE CONSTANT-VELOCITY UNIVERSAL JOINT FOR PROPELLER SHAFT
Document Type and Number:
WIPO Patent Application WO/2019/208277
Kind Code:
A1
Abstract:
A sliding-type constant-velocity universal joint 1 for a propeller shaft is provided with an outer-side joint member 2, an inner-side joint member 3, eight torque-transmitting balls 4, and a retainer 5. A center O1 of curvature of a spherical outer peripheral surface 12 of the retainer 5 and a center O2 of curvature of a spherical inner peripheral surface 13 have the same offset amount (f) toward opposite sides in an axial direction relative to the center O3 of a pocket 5a. The ratio f/PCDBALL between the offset amount (f) of the retainer 5 and the pitch circle diameter (PCDBALL) of the torque-transmitting balls 4 is 0.07 or more and 0.09 or less.
Inventors:
KOBAYASHI MASAZUMI (JP)
KOBAYASHI TOMOSHIGE (JP)
KOBAYASHI TOMOSHIGE (JP)
Application Number:
PCT/JP2019/016030
Publication Date:
October 31, 2019
Filing Date:
April 12, 2019
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16D3/227; F16D3/20
Foreign References:
| JPH1073129A | 1998-03-17 | |||
| JP2000314430A | 2000-11-14 | |||
| JP2007100797A | 2007-04-19 | |||
| JP2007224995A | 2007-09-06 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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