Patent ID: 8376095
Filing Date: 2013-02-19
Classification: F16C,F16D

Abstract:
1. A rolling bearing having a braking device, comprising: an outer bearing race and an inner bearing race, one of the bearing races being provided for adjustment of pre-tension and being of a two-part design; and rolling bodies, which roll between the outer bearing race and the inner bearing race, are formed by bearing needle rollers of two opposing axial angular contact needle-roller bearings that each have an axis of rotation, a point of intersection of axis of rotation of each of the two opposing axial angular contact needle-roller bearings lying in the inner bearing race or in the outer bearing race, wherein, in order to produce a braking effect by frictional engagement, a displaceable braking element connected to one of the bearing races is pressed against an opposing face connected to an associated other one of the bearing races and the frictional engagement is canceled by an electromagnet, and wherein the braking element is arranged as an integral bearing component inside one of the bearing races and pressed against the opposing face by a spring force, and the electromagnet comprises one of the bearing races as a soft-iron core and a coil surrounding the latter, and wherein the bearing race for adjustment of pre-tension is connected to an adjusting nut that is displaceable in an axial direction.