Title:
SLIDING-TYPE CONSTANT VELOCITY UNIVERSAL JOINT FOR REAR-WHEEL DRIVE SHAFT
Document Type and Number:
WIPO Patent Application WO/2018/168634
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 WI/DBALL of the axial-direction width WI of the inside joint member (22) to the diameter DBALL of the balls is 1.2–1.55.
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Inventors:
KOBAYASHI MASAZUMI (JP)
KOBAYASHI TOMOSHIGE (JP)
KOBAYASHI TOMOSHIGE (JP)
Application Number:
PCT/JP2018/008958
Publication Date:
September 20, 2018
Filing Date:
March 08, 2018
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 | |||
| JPS5226657Y1 | 1977-06-17 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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