Title:
SLIDING CONSTANT-VELOCITY UNIVERSAL JOINT
Document Type and Number:
WIPO Patent Application WO/2023/026826
Kind Code:
A1
Abstract:
Provided is a sliding constant-velocity universal joint 1 which is provided with six torque-transmitting balls 4 and in which the center of curvature O1 of a spherical outer peripheral surface 11 of a cage 5 and the center of curvature O2 of a spherical inner peripheral surface 12 are offset to opposite sides in an axial direction with respect to a joint center O, the sliding constant-velocity universal joint 1 being characterized by being used at a normal operating angle of 8-12°, and in that the ratio DBALL/DSPCD of the diameter BALL of the torque-transmitting balls 4 to the spline pitch circle diameter DSPCD of a connecting hole 13 in an inner joint member 3 is 0.80-0.86, the contact angle α between the torque-transmitting balls 4 and linear track grooves 7, 9 is 32-35°, and the contact ratio ψ between the torque-transmitting balls 4 and the linear track grooves 7, 9 is 1.05-1.08.
Inventors:
KOBAYASHI MASAZUMI (JP)
SUGIYAMA TATSURO (JP)
SUGIYAMA TATSURO (JP)
Application Number:
PCT/JP2022/030127
Publication Date:
March 02, 2023
Filing Date:
August 05, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16D3/227
Foreign References:
| JP2018132135A | 2018-08-23 | |||
| JP2019190549A | 2019-10-31 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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