Bearing structure for brushless DC motor

Details Bearing structure for brushless DC motor Bearing structure for brushless DC motor

1998-06-19

2000-10-17

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310254, 310156, 384100, 384291, H02K 516

Patent

active

061336602

ABSTRACT:
A brushless DC motor including a rotor, a field magnet, and fixed poles having salient poles opposed to the field magnet. A bearing structure includes a rotating portion adapted to rotate with the rotor, a part of which rotating portion contacts the shaft, and a groove formed in the rotating contact portion at a predetermined angle between an angle parallel to the axial direction of the rotating portion and an angle perpendicular thereto. A lubricating oil fills both the rotating contact portion and the groove. A plastic plate is disposed under the rotating portion to bear a thrust force of the rotating portion.

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patent: 5847479 (1998-12-01), Wang et al.

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