Title:
固定型等速自在継手
Document Type and Number:
Japanese Patent JP5507061
Kind Code:
B2
Abstract:
Provided is a fixed type constant velocity universal joint of an eight-ball undercut-free type, which is capable of achieving an improvement of torque capacity at a high operating angle while ensuring durability at the time of a low operating angle. In the fixed type constant velocity universal joint of the eight-ball undercut-free type, a center of a track groove (32) of an outer joint member and a center of a track groove (35) of an inner joint member are separated from a joint center plane (P) respectively to both sides in an axial direction, and are offset to be positioned away from a joint center axis (X) to a radially opposite side relative to the track grooves (35). When Rt represents a distance between a center of a ball (37) and the center of the track groove (32) of the outer joint member, and F represents an axial distance between the joint center plane (P) and the center of the track groove (32) of the outer joint member, a ratio R1 between F and Rt is set to satisfy 0.061¤R1¤0.087, and, when fr represents a radial offset amount as a distance between the joint center axis (X) and the center of the track groove (32) of the outer joint member, a ratio R3 between fr and Rt is set to satisfy 0.07¤R3¤0.19.
Inventors:
Keisuke Sone
Hiroshi Oba
Kazuhiko Yoshida
Kiyohiro Ito
Hiroshi Oba
Kazuhiko Yoshida
Kiyohiro Ito
Application Number:
JP2008155865A
Publication Date:
May 28, 2014
Filing Date:
June 13, 2008
Export Citation:
Assignee:
ntn corporation
International Classes:
F16D3/20; F16D3/2237
Domestic Patent References:
| JP9317783A | ||||
| JP2007270997A | ||||
| JP200197063A | ||||
| JP2002541395A |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Tsuyoshi Kumano