Universal joint

Details Universal joint Universal joint

2011-02-15

2011-02-15

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

Reexamination Certificate

active

07887423

ABSTRACT:
A universal joint includes an outer member defining an interior opening and a plurality of grooves within the opening extending along a longitudinal axis. An inner member is disposed within the opening and includes a plurality of pockets opposing the grooves. A drive ball is disposed within each pocket and engages the opposing groove. Each of the pockets and each of the grooves opposing the pockets include a central axis passing through a ball center of the drive balls. The drive balls are supported by the pockets and define a pocket contact angle. The drive balls are also supported by the grooves and define a groove contact angle. The pocket contact angle is less than the groove contact angle to urge the drive balls upward against the grooves.

REFERENCES:
patent: 1622425 (1927-03-01), Dwyer
patent: 4753626 (1988-06-01), Hazebrook et al.
patent: 4832657 (1989-05-01), Hahn
patent: 6685571 (2004-02-01), Smith
patent: 61-153018 (1986-07-01), None

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