Method for adjusting the axial play between the rotor and a moto

Details Method for adjusting the axial play between the rotor and a moto Method for adjusting the axial play between the rotor and a moto

1988-12-28

1990-02-13

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

310 42, 310 43, 310 90, 384296, H02K 1500

Patent

active

048994324

ABSTRACT:
For a simple adjustment, suitable for automation, of the axial play between the rotor (1, 2) and the stator (5 to 8) of a miniature electric motor, at least one bearing (3) is axially moved relative to its bearing sleeve (51) in the end bell (5) and is fixed in its adjustment position by deformation of the bearing sleeve in a form-locking manner. For axial fixation, especially when used for drives with large axial loads, a thrust shoulder (511, 512) is formed after the axial play is adjusted for the axial contact of the adjusted bearing (15) from the bearing sleeve (51) by hot molding, ultrasonic heat deformation. Alternatively, precut tabs may be formed on the sleeve by embossing to form a thrust shoulder.

REFERENCES:
patent: 3431625 (1969-03-01), Schenk et al.
patent: 3432700 (1969-03-01), Diederichs
patent: 3497735 (1970-02-01), Diederichs et al.
patent: 3714705 (1973-02-01), Lewis
patent: 4164674 (1979-08-01), Buckman et al.
patent: 4170058 (1970-10-01), Leffler

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