Patent ID: 8479893

Claim:
A roller bearing having a braking device, comprising: a bearing outer ring and a bearing inner ring, between which roller bodies roll on associated raceways, wherein a braking element, which can be moved and is connected to one of the bearing rings, is pressed against an opposing surface, which is connected to the associated other bearing ring by a friction lock in order to produce a braking effect, and the friction lock can be cancelled with an aid of an electromagnet, wherein the braking element is arranged as an integral bearing component within one of the bearing rings and is pressed by means of spring force against the opposing surface, wherein the spring force is variably adjustable and the electromagnet comprises one of the bearing rings as a soft-iron core, and a coil surrounding this, and wherein the braking element comprises a ferromagnetic armature plate, a pressure plate and a coil which is arranged in one of the bearing rings, and wherein a brake lining is arranged between the armature plate and the pressure plate, the armature plate which is connected to one of the bearing rings, is held, such that the armature plate can move axially, via a plurality of guide pins which are spaced apart from one another in a circumferential direction, and a variable prestress can be applied to the armature plate via a plurality of spring elements, which are spaced apart from one another in the circumferential direction, such that the spring elements are supported on an annular adjusting ring, which can move freely in an axial direction.