Patent ID: 6068404
Filing Date: 2000-05-30
Classification: F16C

Abstract:
Ball bearing for effecting longitudinal movements, comprising a cage provided with at least two longitudinally extending guide tracks having opposite ends that are connected by arcuate turn around tracks, and a plurality of balls positioned in said guide tracks, with balls positioned in one of the guide tracks forming loaded balls and balls positioned in another one of the guide tracks forming unloaded balls, the longitudinally extending guide track for the load-bearing balls being provided with a slit that is open radially inwardly for passage of the balls in a direction radially inwardly, the longitudinally extending guide track for the unloaded balls being covered on all sides and having an interior wall which, in cross-section, possesses at least two substantially diametrically opposed first sections having a circular contour and at least two substantially diametrically opposed second sections laterally offset from the first sections and having a base that is set back from the circular contour.