Bearing assembly of a swash plate in a steering gear component, and surgical instrument

A surgical instrument comprising:

• a bearing arrangement of a wobble plate in a steering gear component of a surgical instrument, wherein the wobble plate is mounted so as to be rotatable about an axis of rotation in a receptacle opening of the steering gear component, wherein the wobble plate has an outer circumferential surface which provides an all-round inner bearing surface, and the steering gear component includes an inner circumferential surface located in the receptacle opening and providing an all-round outer bearing surface, and the bearing arrangement includes:
• a plurality of roller bodies which are accommodated in a manner distributed all around between the all-round inner bearing surface of the wobble plate and the all-round outer bearing surface of the steering gear component, with the result that the wobble plate, the steering gear component, and the plurality of roller bodies provide an integrated antifriction bearing of the bearing arrangement;
• a motorized drive with at least two drive wheels, between which the wobble plate is arranged, and wherein the wobble plate is coupled by way of the bearing arrangement to a third gear wheel which meshes with the two drive wheels, wherein the steering gear component is a steering ring which is coupled for conjoint rotation with the third gear wheel, and further including a fourth gear wheel which meshes with the two driven gear wheels is arranged on the axis of rotation of the third gear wheel, in a manner offset by 180° from the third gear wheel.