Product Description:

The ADF104C-B05TR1-AS06-A2N2 is a main spindle motor manufactured by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. Classified as a liquid-cooled asynchronous motor, it is intended for driving machine-tool spindles where continuous torque and thermal stability are required. In industrial automation, the unit converts electrical energy from an inverter into mechanical rotation for cutting, grinding, or milling operations, while closed-loop control relies on the drive’s encoder interface.

The rotor is balanced to S DIN ISO 2373, a grade that limits vibration during high-speed machining. Position and speed feedback are supplied through digital servo feedback, enabling the drive controller to keep velocity error low. Mechanical attachment to the machine frame uses flange mounting, and the power conductors terminate on a connector plug for rapid exchange of the spindle assembly. The stator stack uses motor length code C, which provides additional active iron compared with shorter variants and raises continuous power. A standard bearing set supports the plain shaft, while size 104 corresponds to an outside diameter that fits typical cartridge housings. The coolant connections follow the standard layout so the motor can be added to existing closed-loop cooling circuits without new manifolds.

This unit is supplied without a holding brake, so axis restraint during power loss must be provided by the machine clamping system. The power connector is oriented to the right, and its housing sits at the top of the stator jacket to keep cable bends short inside the spindle head. Heat is removed directly from the windings for consistent thermal behavior even under long duty cycles. The shaft is a plain design without a seal ring, there is no second shaft end on side B, and winding code AS matches the electrical characteristics required by the designated inverter ratings.