Title:
BEARING UNIT FOR DRIVING WHEEL
Document Type and Number:
Japanese Patent JP2001113906
Kind Code:
A
Abstract:
To realize a small, lightweight structure with excellent durability and reliability.
A female spline part 16a formed at a center hole 15a of a hub 4a is engaged with a male spline part 14a formed at a drive shaft 12a attached to a housing part 13a that constitutes a constant velocity universal joint. A retaining ring 24 joins an outside locking groove 23 formed on the female spline part 16a and an inside locking groove 22 formed on the male spline part 14a to prevent the drive shaft 12a from coming off. The female spline part 16a and the male spline part 14a are hardened to prevent fretting abrasion.
Inventors:
KAYAMA SHIGEOKI
Application Number:
JP29526299A
Publication Date:
April 24, 2001
Filing Date:
October 18, 1999
Export Citation:
Assignee:
NSK LTD
International Classes:
B60B35/18; F16C19/18; F16C33/64; F16C35/073; F16D1/02; F16D3/20; (IPC1-7): B60B35/18; F16C33/64; F16C35/073; F16D1/02; F16D3/20
Attorney, Agent or Firm:
Takeo Koyama (1 person outside)