Electric drive motor with a compound bearing assembly

Details Electric drive motor with a compound bearing assembly Electric drive motor with a compound bearing assembly

1996-08-08

1998-09-15

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

384510, 384504, 384520, 2989806, 2989807, 2989809, H02K 516, F16C 3360, B23P 1500

Patent

active

058083880

ABSTRACT:
A first outer race ring 3, a sleeve-like spacer 7, a plurality of first balls 4, a conventional ball bearing unit 5 and a stepped-diameter shaft 1 are assembled into a compound bearing assembly by a bearing maker to enable a user or motor manufacturer to be free from a cumbersome assembling work of the bearing assembly. Consequently, upon receipt of the bearing assembly, the motor manufacturer may immediately mount the bearing assembly in a central hub portion of a rotor of the motor in an insertion manner to complete his product, i.e., high-performance motor.

REFERENCES:
patent: 2825200 (1958-03-01), Boullion
patent: 3826545 (1974-07-01), McKee
patent: 4934843 (1990-06-01), Nakamishi
patent: 5106210 (1992-04-01), Chi
patent: 5160866 (1992-11-01), Hishida et al.
patent: 5509198 (1996-04-01), Takamizawa et al.
patent: 5510661 (1996-04-01), Yoshimura et al.
patent: 5556209 (1996-09-01), Obara et al.

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