Patent ID: 6574186
Filing Date: 2003-06-03
Classification: F16C,G11B,H02K

Abstract:
A method of assembling a motor using a plain bearing unit, comprising the steps of:arranging two radial bearings and a ring-shaped bearing part permanent magnet between the radial bearings from an opening side of a non-magnetic bearing housing, and arranging a thrust bearing to close an opening on one side of the bearing housing; arranging an external permanent magnet on an outside corresponding to a thrust bearing part of the housing; pouring lubricating magnetic fluid of a specified amount into the thrust bearing part from an opening on the other side of the bearing housing; incorporating a shaft, which has a rotary member of a motor and is to be rotatably supported by the radial bearings and the thrust bearing, from the opening on the other side of the bearing housing; and removing the external permanent magnet arranged outside the housing.