Bearing retainer for a miniature motor

Details Bearing retainer for a miniature motor Bearing retainer for a miniature motor

1994-06-08

1996-02-27

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

29898043, 29898049, 310 90, F16C 2304, H02K 516

Patent

active

054943566

ABSTRACT:
A bearing retainer 20 has a hollow body 21 with an open end forming a mouth 25. The mouth opens into an inner void 23 having a bearing support surface 28 for receiving a bearing. The void also has a plurality of axially extending ribs 30 defining a number of lubrication reservoirs or recesses 33. A plurality of teeth 26 extend axially from the open end for engaging a hole in the motor casing to prevent rotation between the retainer and the casing and are deformable to prevent axial separation. Proud co-planar abutment surfaces 27 are respectively disposed between adjacent teeth and bear against the casing to axially align the casing and retainer. The bearing is made by forging, casting or sintering.

REFERENCES:
patent: 791086 (1905-05-01), Deutsch
patent: 2070718 (1937-02-01), Ehrlich
patent: 2462204 (1949-02-01), Ludwig
patent: 3717779 (1973-02-01), Hallerback
patent: 4350912 (1982-09-01), Burton
patent: 4471246 (1984-09-01), Paillet
patent: 4795926 (1989-01-01), Someya et al.
patent: 4910424 (1990-03-01), Borcherding

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