Patent ID: 6632022
Filing Date: 2003-10-14
Classification: F16C

Abstract:
A coupling structure for a bearing and bushing comprising:a bushing having a housing chamber; a ball bearing housed inside the housing chamber, the ball bearing containing a first lubricant; a washer positioned adjacent to the ball bearing inside the housing chamber; an oil-retained bearing containing a second lubricant, the oil-retained bearing positioned adjacent to the washer in the housing chamber, and the washer is positioned between the ball bearing and the oil-retained bearing; and the housing chamber having one end thereof comprising a lip opening adapted for anchoring the ball bearing and the washer such that the ball bearing and the oil-retained bearing and the washer are allowed to attain precise positioning and concentricity with respect to one another, and prevent the second lubrication oil contained in the oil-retained bearing from mixing with the first lubrication oil of the ball bearing, thereby minimizing noise and vibration during operation.