Miniature electric motor

Details Miniature electric motor Miniature electric motor

1992-07-16

1994-09-13

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 89, 310 90, H02K 516

Patent

active

053471873

ABSTRACT:
In a miniature electric motor a hollow cylindrical socket (2) is formed by deep drawing process on a roof plate of a frame (1), and in this socket (2) a bearing housing (4) is tightly fit projecting outwardly and inwardly from its roof plane, and at least one bearing metal (3) is further tightly fitted therein in a manner to project from both ends of the bearing housing (4).
By utilizing the draw-worked socket (2) for tightly holding the bearing metal (3), the accuracy of axis or circularity of the bearing hole is assured.

REFERENCES:
patent: 4128935 (1978-12-01), Czech et al.
patent: 4409505 (1983-10-01), Petersen
patent: 4539499 (1985-09-01), Punch et al.
patent: 4716327 (1987-12-01), Stone
patent: 4769566 (1988-09-01), Matsuda
patent: 4795926 (1989-01-01), Someya et al.
patent: 4806811 (1989-02-01), Mayumi et al.
patent: 4827167 (1989-05-01), Mayumi et al.
patent: 4896065 (1990-01-01), Tsuyama
patent: 4961018 (1990-10-01), Akhter
patent: 5272403 (1993-12-01), New

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