| 摘要 |
A motor case is provided to reduce a cost by omission of a spring for fixing a bearing since the spring for fixing the bearing is not required by fixing a bearing with a self-tension of the motor case. A motor case includes a housing(110) and a tension cap(120). The housing fixes a bearing(200) for rotatably supporting a shaft coupled with a rotor. The bearing is seated on the housing. The tension cap is mounted on the housing and provides a tension for fixing the bearing. The housing makes a pair with a cover so as to open an inner space. A seating unit(111) on which the bearing is seated is formed in the inside surface of the housing. A coupling unit(112) protrudes in a circumference of the seating unit. The tension cap is made of a material such as a synthetic resin having a restoration force. The tension cap is inserted into the coupling unit of the housing. A main tension unit(122) is formed along a hanging hole(121) and a periphery in the center of the tension cap. The hanging hole disables the bearing to be removed from the housing.
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