Product Description:

The ADF104C-B05TR1-CS07-C2N2 main-spindle unit is produced by Bosch Rexroth Indramat as part of the ADF Main Spindle Motors series. It is a liquid-cooled asynchronous motor built to supply continuous power to numerically controlled machine tools and other automated equipment. By combining a water-jacketed stator with precision rotor balancing, the motor supports stable speed regulation during high-duty cutting, grinding, and boring tasks when it is operated with a matched frequency inverter. The liquid-cooling arrangement helps remove heat from the stator housing during long production cycles.

The motor uses size 104 and length code C, a combination that sets the iron core volume and cooling surface available for sustained torque. Electrical characteristics are matched to winding code CS, so the connected drive can supply voltage and current that suit the intended operating range. Dynamic behavior is improved by balance quality class S DIN ISO 2373, which helps reduce vibration transmitted to the spindle nose. The housing uses flange mounting, so axial alignment is established by the machine casting rather than by a separate foot. Coolant enters through a standard connection, and the right-side power lead exits through a top-mounted connector housing that helps keep internal cable routing compact.

Rotational accuracy is supported by a standard bearing set, and the motor includes a shaft seal ring to help block coolant ingress. Motion control loops benefit from digital servo feedback with an integrated encoder, which provides high-resolution speed monitoring without additional external sensors. Because the motor is supplied without a holding brake, spindle arrest during maintenance must rely on the mechanical clamp built into the machine. A plain shaft is provided at the drive end, and there is no second shaft extension on side B, which helps preserve rotor balance and simplifies coupling at the output end.