Abstract: The invention relates to a method for determining the mass and the center of gravity location of a load (10) of a moving system (12), particularly of a machine tool (14), which comprises a support (20) that is for accommodating the load (10) and is able to rotate around a first axis (16) and a second axis (18) as well as electronically controlled drive units (22, 24) for rotating the support (20) around the first axis (16) and around the second axis (18), wherein a total moment of inertia and a holding torque with regard to the first axis (16) are determined in a loaded state; a total moment of inertia and a holding torque with regard to the second axis (18) are determined in the loaded state; and the mass and the center of gravity location of the load (10) relative to the support (20) are determined based on the total moments of inertia and the holding torques with regard to the first axis (16) and second axis (18).

Abstract: The invention relates to a method for determining the mass and the center of gravity location of a load (10) of a moving system (12), particularly of a machine tool (14), which comprises a support (20) that is for accommodating the load (10) and is able to rotate around a first axis (16) and a second axis (18) as well as electronically controlled drive units (22, 24) for rotating the support (20) around the first axis (16) and around the second axis (18), wherein a total moment of inertia and a holding torque with regard to the first axis (16) are determined in a loaded state; a total moment of inertia and a holding torque with regard to the second axis (18) are determined in the loaded state; and the mass and the center of gravity location of the load (10) relative to the support (20) are determined based on the total moments of inertia and the holding torques with regard to the first axis (16) and second axis (18).

Abstract: A rotary table for a machine tool comprising a stator unit, a rotor unit rotatable at least about a rotational axis, wherein the rotor unit comprises at least one receiving unit for the reception of a workpiece, a first bearing unit for the mounting of the rotor unit in the stator unit, and an electromagnetic motor drive for the motorized driving of the rotor unit. The rotor unit, at least in the region of the motor drive and/or of the first bearing unit, has at least one rotor-cooling apparatus, comprising a cooling medium and at least one cooling surface, for the cooling and/or absorption of waste heat from the motor drive and/or from the first bearing unit.

Abstract: A rotary table for a machine tool comprising a stator unit, a rotor unit rotatable at least about a rotational axis, wherein the rotor unit comprises at least one receiving unit for the reception of a workpiece, a first bearing unit for the mounting of the rotor unit in the stator unit, and an electromagnetic motor drive for the motorized driving of the rotor unit. The rotor unit, at least in the region of the motor drive and/or of the first bearing unit, has at least one rotor-cooling apparatus, comprising a cooling medium and at least one cooling surface, for the cooling and/or absorption of waste heat from the motor drive and/or from the first bearing unit.