Power steering system, speed reduction mechanism and bearing...

Details Power steering system, speed reduction mechanism and bearing... Power steering system, speed reduction mechanism and bearing...

2007-07-12

2011-11-29

Boehler, Anne Marie (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C180S443000, C180S446000

Reexamination Certificate

active

08066093

ABSTRACT:
A power steering system includes a wormshaft housed in a shaft housing portion and rotatably supported at one end by a bearing, a worm wheel adapted to mesh with the wormshaft, a bottomed, cylindrical bearing holder configured to enclose and fit onto the bearing for holding the bearing, and a preloading means located in the bearing holder for preloading the bearing in a direction of meshed-engagement of the worm gear. An adjustment-mechanism housing portion is formed at one end of the shaft housing portion for housing and retaining the bearing holder. A restriction wall is formed in the adjustment-mechanism housing portion for restricting a movement of the bearing holder. The preloading means includes a preload portion formed integral with the bearing holder, for forcing the bearing in the direction of meshed-engagement by a force of resiliency of the preload portion, thus ensuring sufficient accuracy of meshed-engagement without complicated machining.

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