| 摘要 |
Disclosed is an electric motor. The electric motor includes: a housing, a stator assembly installed in the housing, a rotator assembly which is installed in the housing to be rotated by an electromagnetic force generated by interaction with the stator assembly when electricity is applied, an air foil bearing part which supports the rotation shaft of the rotator assembly, at least one bushing which is inserted into the rotation shaft of the rotator assembly. The bushing is not in contact with the rotation shaft of the rotator assembly in normal rotation. The bushing is in contact with the rotation shaft in abnormal rotation that the rotation shaft is beyond a set limit from the rotation axis line. |
