| 摘要 |
A method of making a rotor (26) for an electric motor (12), the rotor (26) including a magnet assembly (32) and a bearing (36), the bearing (36) being adapted for supporting the rotor (26) on a shaft (34) whilst permitting rotation of the rotor (26) about the shaft (34), the method including the steps of engaging the bearing (36) with a bearing support tool, engaging a first engagement formation (32c) provided on the magnet assembly (32) with a corresponding second engagement formation (36a) provided on the bearing (36) such that movement of the magnet assembly (32) with respect to the bearing (36) is restricted, and moulding a polymeric rotor casing around the magnet assembly (32) and bearing (36) so that the magnet assembly (32) and bearing (36) are retained by the rotor casing. |
