Wheel bearing assembly with plastic bearing seals

Details Wheel bearing assembly with plastic bearing seals Wheel bearing assembly with plastic bearing seals

1977-08-22

1978-09-12

Blix, Trygve M.

Cutlery

308190, F16C 3372

Patent

active

041133285

ABSTRACT:
A sealed wheel bearing assembly including thermoplastic seals permanently fused to a thermoplastic wheel or bearing. The thermoplastic wheel or outer bearing member has at least one row of bearings fitted between an outer raceway in a central aperture extending through the wheel or bearing member and an inner raceway on an inner race. An annular seal on one side, formed from a thermoplastic material, centers itself on and engages an annular surface of the inner race. A sealing disc, also formed from a thermoplastic material, may be included on the opposite side to cover the end of the inner race and the entire central wheel or bearing aperture. Both the seal and sealing disc are fused, preferably by ultrasonic welding, to the thermoplastic wheel or bearing member. The assembly is especially useful in trolley conveyor, conveyor and other bearing applications to prevent bearing contamination by moisture, dirt or the like.

REFERENCES:
patent: 2076239 (1937-04-01), Lemmon
patent: 3807817 (1974-04-01), Black
patent: 4019789 (1977-04-01), Rosin et al.

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