Hub-containing element retention mechanism

Details Hub-containing element retention mechanism Hub-containing element retention mechanism

1993-10-28

1994-12-06

Buiz, Michael Powell

Endless belt power transmission systems or components

Friction drive pulley or guide roll

474903, F16H 5530

Patent

active

053705874

ABSTRACT:
An improved mechanism for retaining a hub-containing element such as a pulley, fan, gear or the like, on a shaft wherein the shaft has a circumferential groove formed near its end and the element has a hub to engage the shaft with a plurality of flexible fingers formed around and extending onward from the hub. The fingers have a pawl disposed to drop into the circumferential groove on the shaft and thereby secure the element in place. The pawls can be of various configurations so as to both align properly with the groove and to accommodate tolerances in the shaft assembly. A protective collar surrounds the fingers and extends axially from the hub to protect the fingers from entanglement and breakage during manufacture, storage, or transportation. The shaft also has splines formed therein proximate the groove that matingly engage corresponding keyways formed inside the hub so that the shaft positively mates with the hub.

REFERENCES:
patent: 1909500 (1933-05-01), Ornitz
patent: 4509381 (1985-04-01), Ikemoto et al.
patent: 4998905 (1991-03-01), Martin
patent: 5275577 (1994-01-01), Hildebrandt et al.

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