Title:
SLIDING-TYPE CONSTANT VELOCITY UNIVERSAL JOINT FOR REAR-WHEEL DRIVE SHAFT
Document Type and Number:
WIPO Patent Application WO/2018/168631
Kind Code:
A1
Abstract:
A sliding-type constant velocity universal joint 2 that comprises: an outside joint member 21, an inside joint member 22, eight balls 23, and a retainer 24. The center of curvature O24b of a spherical part 24b of an outer circumferential surface of the retainer 24 and the center of curvature O24d of a spherical part 24d of an inner circumferential surface of the retainer 24 are each offset to an axial-direction opposite side by exactly the same distance relative to a joint center O(s). The ratio PCDBALL/DBALL of the pitch circle diameter PCDBALL of the balls 23 to the diameter DBALL of the balls 23 is 3.3–3.6. The ratio TI/DBALL of the radial-direction thickness TI of the inside joint member 22 to the diameter DBALL of the balls 23 is 0.30–0.45.
Inventors:
KOBAYASHI MASAZUMI (JP)
KOBAYASHI TOMOSHIGE (JP)
KOBAYASHI TOMOSHIGE (JP)
Application Number:
PCT/JP2018/008949
Publication Date:
September 20, 2018
Filing Date:
March 08, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16D3/227
Foreign References:
| JPH1073129A | 1998-03-17 | |||
| JP2009250342A | 2009-10-29 | |||
| JP2013189995A | 2013-09-26 | |||
| JPS5226657Y1 | 1977-06-17 | |||
| JPH1073129A | 1998-03-17 | |||
| JP2012097797A | 2012-05-24 |
Other References:
See also references of EP 3597952A4
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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