Product Description:

The ADF132B-B05TA1-BS07-A2N1 is a main spindle drive motor manufactured by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. As a liquid-cooled asynchronous spindle unit, it delivers continuous torque for milling, turning, and grinding centers that need precise speed regulation on the primary axis. The motor uses size 132 stator laminations and length code B to provide power density suited to medium-frame machine tools. Its plain coolant connections follow the standard series pattern and allow straightforward connection to a closed-loop chiller circuit.

Mechanical integration is provided by flange mounting, which lets the stator face sit flush with the machine frame. Rotor balance meets the R DIN ISO 2373 quality grade, which helps limit residual vibration during high-speed operation. Position data are returned through digital servo feedback with an integrated encoder, giving the controller rotor-angle information for closed-loop vector control. Power enters through a connector plug in a housing on the motor’s top side, and the conduit is oriented toward Side A to keep the bearing service zone clear. The motor uses standard-class bearings for routine spindle support.

Torque is transmitted through a plain shaft that is supplied without keying, so the coupling can be machined to match the spindle interface. Because it is supplied without a holding brake, the machine control must rely on external clamping or drive torque to keep the spindle stationary during tool changes. The rear cover is made without a second shaft end, which simplifies sealing around the internal coolant passages. No shaft seal ring is fitted, so air purge or positive internal pressure can help block cutting fluid ingress. The BS winding code sets the electrical characteristics expected by the matching Rexroth inverter.