Title:
FIXED TYPE CONSTANT VELOCITY UNIVERSAL JOINT
Document Type and Number:
WIPO Patent Application WO/2019/009014
Kind Code:
A1
Abstract:
A fixed type constant velocity universal joint comprising an inner joint member and an outer joint member formed from a plurality of track grooves, torque transmission balls incorporated between opposing track grooves, and a cage which holds the torque transmission balls, wherein: outer joint member track grooves (7) are configured from three pairs of first track grooves (7A, 7B) positioned equidistantly in the circumferential direction and three second track grooves (7C); trajectory center lines (XA, XB) of the first track grooves (7A, 7B) and trajectory center lines (XC) of the second track grooves (7C) are designed in order to satisfy predetermined conditions; and with a plane (P) as the reference, trajectory center lines (Y) of inner joint member track grooves (9) are formed in mirror symmetry with trajectory center lines (X) of the pairs of track grooves (7) of the outer joint member.
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Inventors:
FUNAHASHI MASASHI (JP)
FUJIO TERUAKI (JP)
FUJIO TERUAKI (JP)
Application Number:
PCT/JP2018/022121
Publication Date:
January 10, 2019
Filing Date:
June 08, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16D3/2233
Foreign References:
| JPH11303882A | 1999-11-02 | |||
| JP2004332815A | 2004-11-25 | |||
| JP2012017809A | 2012-01-26 | |||
| JP2008519207A | 2008-06-05 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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