Multi-roller ball for constant velocity joints

Details Multi-roller ball for constant velocity joints Multi-roller ball for constant velocity joints

2006-11-21

2006-11-21

Binda, Greg (Department: 3679)

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Coupling accommodates drive between members having...

Coupling transmits torque via radially spaced ball

C464S906000

Reexamination Certificate

active

07137896

ABSTRACT:
A constant velocity joint includes an outer joint member, an inner joint member, torque transmitting ball assemblies guided in pairs of tracks, and a cage having windows for receiving the ball assemblies and cage webs defined between the windows. Each ball assembly comprises a slide shaft having lugs at the ends, a roller shaft rotatably and slidably disposed on the slide shaft, and a first and second annular sub-rollers rotatably disposed on the roller shaft. Each of cage webs includes web grooves formed radially at the circumferential faces, engaging the lugs of the slide shaft, thereby allowing a limited radial movement of the ball assembly relative to the cage window, and transmitting any axial force to and from the ball assembly. The ball assemblies reduce the friction loss and wear of constant velocity joints by providing the sub-rollers that roll independently on the inner or outer tracks.

REFERENCES:
patent: 367387 (1887-08-01), Goetz
patent: 381476 (1888-04-01), Lehmann
patent: 1454057 (1923-05-01), Kuttner
patent: 3441299 (1969-04-01), Pfaar
patent: 5069571 (1991-12-01), Matczak et al.
patent: 6009659 (2000-01-01), Shannon et al.
patent: 6227978 (2001-05-01), Maucher et al.
patent: 292730 (1935-12-01), None

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