Tripod type constant velocity universal joint

Details Tripod type constant velocity universal joint Tripod type constant velocity universal joint

2006-10-17

2006-10-17

Dunwoody, Aaron (Department: 3679)

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

Coupling accommodates drive between members having...

Tripod coupling

C464S123000, C464S124000, C464S905000

Reexamination Certificate

active

07121950

ABSTRACT:
A tripod type constant velocity universal joint that can suppress generation of shudder by reducing the 3rd order cyclic axial force and has high rotation durability. In a double-roller tripod type constant velocity universal joint, a track gap δ1between one of the roller guiding surfaces formed on both sides of a track groove, which is on the no-load applied side, and an outer circumferential surface of an outer roller is set to satisfy δ1>0.03/A. Also, a shoulder gap δ2between a guide shoulder surface formed at the bottom of the track groove and a side surface of the outer roller is set to satisfy δ2>0.15×A. In both the expressions, a degree of torus A is defined as a ratio of a radius of curvature r of a generatrix of the outer circumferential surface to a radius R of an outer circumference of the outer roller (A=r/R).

REFERENCES:
patent: 5391013 (1995-02-01), Ricks et al.
patent: 6033311 (2000-03-01), Bartlett
patent: 6776719 (2004-08-01), Perrow
patent: 6776720 (2004-08-01), Bartlett
patent: 2003/0232655 (2003-12-01), Perrow
patent: 09-324822 (1997-12-01), None

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