Rear motor bearing for worm gear drive motors

Details Rear motor bearing for worm gear drive motors Rear motor bearing for worm gear drive motors

1995-06-06

1997-07-01

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 91, 384296, 384372, H02K 1514

Patent

active

056441800

ABSTRACT:
An electric motor, such as a motor for operating a worm drive, has a rear bearing and rear bearing support in the form of a sleeve bearing which is received within a rearwardly facing axial opening formed in the end of the motor armature shaft. The bearing receives one end of a non-rotating pin which has its opposite end secured to the rear end wall of the motor and thus supports the armature shaft on the end wall. Minor misalignments are provided for by aligning movements of the bearing support pin accompanied by slight bending of the end wall of the motor case. In another embodiment, the pin is provided with a spherical end received within a conforming or mating recess and providing for pivotal aligning movement of the bearing support pin with respect to the motor case. The bearing may also be shouldered or flanged so that thrust forces on the shaft are transmitted to an adjacent shoulder on the bearing support pin.

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