Product Description:

The ADF100C-B05TB1-BS03-A2N1 main spindle motor is produced by Bosch Rexroth Indramat within the ADF Main Spindle Motors series. It is engineered to drive machine tool spindles and other continuous-duty axes, supplying steady torque while jacket channels carry coolant directly over the stator to remove heat. In automated production cells, the motor works with Indramat inverters to deliver tightly regulated speed for milling, grinding, or boring operations and helps limit thermal expansion in the spindle assembly.

The mechanical interface uses flange mounting and follows size 100 with length code C, allowing direct seating in spindle housings without additional brackets. Rotor balance meets R DIN ISO 2373, which helps reduce vibration at high speed, and a standard bearing set supports the axial and radial loads created by cutting forces. Position data are supplied by high-resolution motor feedback, enabling the drive to close velocity and position loops precisely. Electrical energy enters through a connector plug, the cable gland faces side B, and the connection housing is mounted at the top of the stator for orderly cable routing. A standard coolant port completes the liquid circuit.

As one of the liquid-cooled asynchronous motors in the series, the unit relies on forced coolant flow rather than an internal fan, which keeps the enclosure compact and quiet. It uses a plain shaft, and no shaft seal ring is fitted, so external machine seals must block coolant splashback. The motor has a single-ended output, so the B-side has no second shaft extension and coupling alignment stays straightforward. Winding code BS indicates the conductor cross-section and electrical resistance used by the motor. The motor ships without a holding brake.