Speed change device pulley with a seal around the hub

Details Speed change device pulley with a seal around the hub Speed change device pulley with a seal around the hub

1985-11-13

1987-01-27

Leppink, James A.

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

474 28, F16H 5556

Patent

active

046392394

ABSTRACT:
It is a matter of a variable speed drive pulley with which is associated a regulating chamber adapted to be connected to a source of fluid, this regulating chamber being sealed in particular by a seal which, coupled axially to the mobile flange, is disposed in line with an abutment spacer also defining one of the extreme positions of the mobile flange. The abutment spacer is carried by the bush of the mobile flange on the side of the bush facing the other flange, it features a transverse collar which is directed radially towards the axis of the assembly and by which it delimits, for its part, a housing in which is disposed the associated seal and, conjointly, passages are provided in a generally radial direction in said bush and the hub of the assembly.

REFERENCES:
patent: 2952161 (1960-09-01), Williams
patent: 3771800 (1973-11-01), Wilson
patent: 4178808 (1979-12-01), Bacher
patent: 4573948 (1986-03-01), Thirion de Briel

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