Patent ID: 6435722
Filing Date: 2002-08-20
Classification: F16C,H02K

Abstract:
An oil-impregnated bearing combination comprising:an axle tube, defining an inner hole having two ends each respectively secured by an upper cap and a lower cap in a tight fit manner, the upper cap having an opening defined therethrough; an oil-impregnated bearing, having a central hole placed in the inner hole of the axle tube in a non-tight fit manner, and retained in the inner hole of the axle tube by the upper cap and the lower cap; a shaft, having a first end combined to a shaft seat of a center of a rotor and a second end passing through the opening of the upper cap in the axle tube, and passing through the central hole of the oil-impregnated bearing, and the distal end of the shaft rested on the lower cap, the shaft section between the upper cap and the oil-impregnated bearing being fitted with a retainer in a tight fit manner, the retainer having an annular wall protruding outward from the opening of the upper cap.