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US 2008/0304778 A1Published application
Bearing for motor
AssigneeSunonwealth Electric Machine Industry Co., Ltd.
InventorAlex Horng
Life of this patent
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Abstract
A bearing is mounted in an axle tube of a motor and includes an axial hole for rotatably receiving a shaft of the motor. At least one guiding groove is defined in a peripheral wall defining the axial hole. The guiding groove extends axially from an end face toward but spaced from the other end face. The guiding groove includes a deposit space formed at a bottom thereof for receiving carbide and impurities to enhance the lubricating effect and to prolong the life of the motor.
Claims20
A motor comprising:
- an axle tube defining a compartment;
- a rotor including a shaft;
- a stator mounted around the axle tube;
- a dust shield mounted in the compartment of the axle tube;
- and
- a bearing mounted in the compartment of the axle tube, with the bearing including an axial hole through which the shaft of the rotor rotatably extends, the bearing including a first end face and a second end face opposite to the first end face, with the bearing further including at least one guiding groove defined in a peripheral wall defining the axial hole, with the guiding groove extending axially from the first end face toward but spaced from the second end face, with the guiding groove including a deposit space formed at a bottom thereof, and with the first end face of the bearing abutting against the dust shield.
3 more elements
A bearing for a motor comprising:
- a first end face;
- a second end face opposite to the end face;
- an axial hole adapted for rotatably receiving a shaft;
- and
- at least one guiding groove defined in a peripheral wall defining the axial hole, with the guiding groove extending axially from the first end face toward but spaced from the second end face, and with the guiding groove including a deposit space formed at a bottom thereof.
2 more elements
A bearing for a motor comprising:
- an axial hole adapted for rotatably receiving a shaft;
- and
- at least one guiding groove defined in a peripheral wall defining the axial hole, with the guiding groove extending axially from an end face of the bearing toward but spaced from another end face of the bearing, and with the guiding groove including a depth larger than a half of a height of the bearing.
Dependencies are inferred from the claim text.