Product Description:

Bosch Rexroth Indramat builds the ADF132C-B05TB1-BS03-B2S2 for use as a main spindle drive in the ADF Main Spindle Motors series. This liquid-cooled asynchronous spindle motor supplies continuous torque to machine tool spindles, transfer lines, and other high-duty production axes where speed stability and thermal control are required. Integrated with Indramat drive controllers, the motor converts inverter output into rotational motion that supports cutting, grinding, and drilling processes in automated plants.

In terms of mechanical layout, the motor is balanced to class S DIN ISO 2373, a rating that limits residual vibration and permits coupling to precision spindles without excessive runout. A spindle bearing set supports radial and axial loads typical of high-speed machining. The frame size is 132, which provides a larger stator cross-section for higher power density, while the flange mounting interface allows rigid installation into the machine headstock. Position and speed are captured by the integrated high-resolution motor feedback, allowing the drive to regulate phase current within electrical degrees. Because the unit is supplied without a holding brake, stopping torque must be provided electrically or by an external clamp. A standard coolant connection channels fluid around the stator jacket, and the shaft is keyed and balanced with the full key to minimize imbalance at speed.

Power connection is made through a connector plug terminal on the housing’s top face, directing the cable to side B and keeping the leads clear of the spindle nose. The length code C indicates the third housing length in the series, and winding code BS identifies the stator wire pattern used for this model’s voltage range. The motor has no shaft seal ring, and it omits a second shaft end on side B, which reduces the axial envelope and potential leakage paths.