Bearing positioning member for a spindle motor
First Claim
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1. A bearing positioning member for a spindle motor, the bearing positioning member being conic and comprising:
- a small diameter portion adapted to abut against an inner race of a ball bearing of the spindle motor;
a large diameter portion adapted to abut against a rotor of the spindle motor; and
at least one resilient connecting portion extending between the small diameter portion and the large diameter portion for biasing the ball bearing and the rotor away from each other, assuring a gap between the ball bearing and the rotor.
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Abstract
A conic bearing positioning member for a spindle motor includes a small diameter portion abutting against an inner race of a ball bearing of the spindle motor, a large diameter portion abutting against a rotor of the spindle motor, and at least one resilient connecting portion extending between the small diameter portion and the large diameter portion for biasing the ball bearing and the rotor away from each other, assuring a gap between the ball bearing and the rotor. The conic bearing positioning member may be a helical spring.
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Citations
20 Claims
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1. A bearing positioning member for a spindle motor, the bearing positioning member being conic and comprising:
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a small diameter portion adapted to abut against an inner race of a ball bearing of the spindle motor;
a large diameter portion adapted to abut against a rotor of the spindle motor; and
at least one resilient connecting portion extending between the small diameter portion and the large diameter portion for biasing the ball bearing and the rotor away from each other, assuring a gap between the ball bearing and the rotor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A bearing positioning member for a spindle motor, the bearing positioning member being a helical spring having a smallest coil abutting against an inner race of a ball bearing of the spindle motor, the helical spring further having a largest coil abutting against an inner side of a rotor of the spindle motor.
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13. A spindle motor comprising:
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a rotor having an inner side;
a ball bearing adapted to be mounted in an axle tube; and
a conic bearing positioning member including a small diameter portion abutting against an inner race of the ball bearing, a large diameter portion abutting against the inner side of the rotor, and at least one resilient connecting portion extending between the small diameter portion and the large diameter portion for biasing the ball bearing and the rotor away from each other, assuring a gap between the ball bearing and the rotor. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification