Large diameter dirt and oil seal for a traction motor gearcase

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member

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Details

277166, 277192, 277DIG4, 74606R, 74609, 384433, F16J 1512, F16H 5702, F16P 102

Patent

active

047308338

ABSTRACT:
For sealing the axle opening in a traction motor gearcase on the motor side thereof, an annular member of elastomeric material has a sleeve portion that is adapted to be clamped to a motor-supporting axle bearing thrust flange and a radially outwardly projecting flange portion that is adapted to fit inside an annular groove formed in an edge of the gearcase sidewall that surrounds the hub of an axle gear adjacent to the thrust flange. The seal further comprises a reinforcing ring having concentric outer and inner sections: the outer section is attached to the flange portion of the annular member to ensure a tight fit in the aforesaid groove, and the inner section extends from the groove to within close proximity of the axle gear hub and forms, with the axle-gear end of the sleeve portion, an annular trough for collecting axle bearing lube oil that escapes through the gear hub-thrust flange interface.

REFERENCES:
patent: 2657675 (1953-11-01), McGowen
patent: 2840396 (1958-06-01), Hennessy
patent: 2954263 (1960-09-01), Kalny
patent: 3140903 (1964-07-01), Stricklin et al.
patent: 3667318 (1972-06-01), Lock
patent: 3727483 (1973-09-01), Hanson et al.
patent: 4200345 (1980-04-01), Walker
patent: 4337954 (1982-07-01), Backliu et al.
patent: 4470324 (1984-09-01), Renk et al.
patent: 4504065 (1985-03-01), Devine
patent: 4603865 (1986-08-01), Bien

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