Close packed plastic bearing ball separator

Details Close packed plastic bearing ball separator Close packed plastic bearing ball separator

1994-05-02

1995-02-07

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384526, 384527, F16C 3338, F16C 3344

Patent

active

053870417

ABSTRACT:
A design for a plastic bearing ball separator is moldable by a true, axial draw technique, which provides no resistance to mold parting, but which also provides complete, gripping ball pockets without limiting the degree to which the ball row can be closely packed. Each ball is gripped between a pair of hook shaped fingers which have ball contact zones facing in one direction, and a ball seat between them that faces in the opposite direction. The ball contact zones touch one side of the ball, and since the fingers wrap around the ball in such a way as to miss the centers of the balls, the ball packing or spacing is not restricted. The ball seats touch the other side of the balls, and have no circumferential overlap with the ball contact zones, so the cage may be molded by molds that form the oppositely axially facing surfaces without conflict, and without restriction as the molds are parted. Axially running notches bordering the ball seats allow the ball seats to have some radial overlap with the pair of ball contact zones that they face, so the ball is securely gripped.

REFERENCES:
patent: 1017480 (1912-02-01), Straub
patent: 1203928 (1916-11-01), Starin
patent: 3397019 (1968-08-01), Day et al.
patent: 3624815 (1971-11-01), Schweitzer
patent: 4330160 (1982-05-01), Stolz et al.
patent: 4560291 (1985-12-01), Bonengel et al.
patent: 4702627 (1987-10-01), Pollastro
patent: 4804276 (1989-02-01), Olschewski et al.
patent: 4938613 (1990-07-01), Griffin et al.

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