Rotational unit e.g. rotary unit, for use in e.g. milling machine, has outer ring of bearing unit removably connected with housing, and inner ring of bearing unit removably connected with stator or rotor of torque motor

摘要

The rotational unit (10) has a torque motor (20) arranged within a housing (62) and provided with a stator (22) and a rotor (24). A bearing unit (LE) is connected with the housing and the torque motor, where the bearing unit is arranged at an end of the housing and has an inner ring (28) and an outer ring (30). Tracks (52, 56, 58) are arranged between the inner and outer rings, where rolling elements (60) roll on the tracks. The outer ring is removably connected with the housing, and the inner ring is removably connected with the stator or the rotor of the torque motor.