Patent ID: 6010247
Filing Date: 2000-01-04
Classification: F16C,G11B

Abstract:
A bearing device for a swing-arm provided in a hard disc drive, comprising:a cylindrical shaft having a flange formed at a first end of the shaft; anda plurality of bearings, each bearing provided with an outer race having first and second ends, an inner race having first and second ends, and a ball held between the inner and outer races, the inner and outer races are aligned in an axial direction of the shaft to form at least a first pair of bearings and a second pair of bearings, wherein said each bearing is coupled to the shaft and the flange of the shaft is bonded to the first end of the inner race of the first pair of bearings, and one of either the outer races and the inner races of respective bearings are bonded to each other and one of either the outer races and the inner races which are not bonded have a spacing therebetween along the axial direction of the shaft and a pre-pressure load is applied to the second end of the non-bonded outer or inner race.