Noise and vibration dampened electric motor such as for use with

Details Noise and vibration dampened electric motor such as for use with Noise and vibration dampened electric motor such as for use with

1991-01-23

1993-08-10

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 90, 384202, H02K 524

Patent

active

052352277

ABSTRACT:
A noise and/or vibration damping system for an electric motor such as for use with a sound motion picture camera. In a preferred embodiment the electric motor includes a rotor shaft supported at either end thereof by bearings, a magnetic field assembly fixed to the motor case and concentrically positioned between the rotor shaft and the motor case, an armature winding assembly fixed to the rotor shaft concentrically positioned between the motor case and the magnetic field assembly, wherein the bearing means are supported upon the magnetic field assembly and are vibrationally isolated therefrom by plurality of O-rings concentrically positioned between the bearing means and the magnetic field assembly, the O-rings being axially spaced along the magnetic field assembly.

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