Title:
SLIDE TYPE CONSTANT VELOCITY UNIVERSAL JOINT FOR PROPELLER SHAFT
Document Type and Number:
Japanese Patent JP2019190547
Kind Code:
A
Abstract:
To provide a slide type constant velocity universal joint exclusive for a compact, light-weight propeller shaft capable of contributing to further fuel consumption of an automobile and requirement for high-speed rotation of the propeller shaft.SOLUTION: A slide-type constant velocity universal joint 1 for a propeller shaft is composed of a double offset slide-type constant velocity universal joint which includes an outer joint member 2, an inner joint member 3, eight torque transmission balls 4 assembled between a linear track groove 7 of the outer joint member 2 and a linear track groove 9 of the inner joint member 3, and a retainer 5 for housing the torque transmission balls 4 in pockets 5a, and in which a center of curvature O1 of a spherical outer peripheral face 12 and a center of curvature O2 of a spherical inner peripheral face 13 of the retainer 5 respectively have equal offset amounts f at opposite sides in an axial direction to a center O3 of each pocket 5a. A ratio Ti/Db of a thickness Ti of the inner joint member 3 and a ball diameter Db of the torque transmission ball 4 is 0.30 or more and 0.45 or less. A ratio PCD/Db of a pitch circle diameter PCDof the torque transmission ball 4 and the diameter Db of the torque transmission ball 4 is 3.3 or more and 3.6 or less.SELECTED DRAWING: Figure 2
Inventors:
KOBAYASHI MASAZUMI
KOBAYASHI TOMOSHIGE
KOBAYASHI TOMOSHIGE
Application Number:
JP2018082972A
Publication Date:
October 31, 2019
Filing Date:
April 24, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16D3/227; F16D3/20; F16D3/223; F16D3/226
Domestic Patent References:
| JPH1073129A | 1998-03-17 | |||
| JP2000314430A | 2000-11-14 | |||
| JP2007100797A | 2007-04-19 | |||
| JP2007224995A | 2007-09-06 |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Yusuke Noguchi
Tsuyoshi Kumano
Yusuke Noguchi