Plastic-surrounded bearing

Details Plastic-surrounded bearing Plastic-surrounded bearing

1985-11-07

1987-05-26

Novosad, Stephen J.

Endless belt power transmission systems or components

Friction drive pulley or guide roll

Including nonmetallic belt-engaging surface portion

474199, 2643288, 26432812, 425573, F16H 5548, B29C 4514

Patent

active

046682090

ABSTRACT:
In a plastic-surrounded bearing in which a pulley made of plastic wider than the width of the outer race of the bearing and provided with extended portions on the opposite sides of the outer race is integrally coupled to the outer race of the bearing by insert injection molding, the pulley has gates for pouring plastic therethrough in one end surface thereof, recesses are provided at a plurality of circumferential locations between the inner peripheral edge and the outer peripheral edge of the end surface of the extended portion of the pulley, and the plastic portions lying between the recesses are reinforcing ribs, the thickness of the ribs between the adjacent recesses in at least one end surface is made greater in the circumferential direction away from the gates.

REFERENCES:
patent: 3199364 (1965-08-01), Dew
patent: 3523991 (1970-08-01), Tucker
patent: 3666322 (1972-05-01), Pickron
patent: 3990136 (1976-11-01), Hishida
patent: 4490128 (1984-12-01), Weiss et al.
patent: 4497766 (1985-02-01), Olsson et al.
patent: 4571226 (1986-02-01), Molloy et al.
patent: 4600400 (1986-07-01), Hallerb/a/ ck

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