Patent ID: 6113277
Filing Date: 2000-09-05
Classification: F16C

Abstract:
A bearing cartridge for pivotally supporting a disc drive actuator about a pivot shaft to radially position a read/write head adjacent a selected data track of a data disc, the bearing cartridge comprising:a first bearing supported by a distal end of the pivot shaft, comprising:a first plurality of balls consisting of a totality of three balls;a first inner race having a characteristic contact surface making single-point contact with the first plurality of balls;a first outer race circumscribing the first plurality of balls and having a characteristic contact surface making single-point contact with the first plurality of balls;a second bearing supported by a proximal end of the pivot shaft, comprising:a second plurality of balls consisting of a totality of three balls;a second inner race having a characteristic contact surface making single-point contact with the second plurality of balls;a second outer race circumscribing the second plurality of balls and having a characteristic contact surface making single-point contact with the second plurality of balls; anda sleeve supported by the outer races of the ball bearings, wherein the sleeve supports the actuator.