| 摘要 |
A vibration motor having a resin bearing is provided to improve performance of the motor by reducing a friction force between a shaft and a rotor. In a vibration motor(30) having a resin bearing(37), a case(32) and a bracket(31) form a space inside. A magnet(39) having at least two poles is fixed to the bracket(31). A pair of brushes(41) are provided in a central space unit of the magnet(39). A shaft(35) is fixed to the case(32) and the bracket(31). A rotor(33) is inserted into the shaft(35). The resin bearing(37) is interposed between the rotor(33) and the shaft(35). The resin bearing(37) has a penetrating hole into which the shaft(35) is inserted and a projection connected to the penetrating hole, and the inside thereof is filled with a lubricating oil.
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