Product Description:

The ADF100C-B05TA1-BS03-B2N1 main-spindle unit is built by Bosch Rexroth Indramat within the ADF Main Spindle Motors series. As a liquid-cooled asynchronous motor, it supplies continuous torque for machining centers, grinders, and similar automated systems that demand sustained speed accuracy under heavy thermal loads. Liquid cooling helps carry heat away during long machining cycles, which supports stable operation when the spindle is under continuous demand. The frame corresponds to motor size 100 with length code C, giving the motor a compact form for spindle installations that still need steady thermal performance.

This motor is factory balanced to R DIN ISO 2373, which limits residual vibration at high spindle speeds. Position data are returned through high-resolution motor feedback, allowing the drive controller to maintain commanded velocity during rapid tool changes and speed transitions. The housing uses flange mounting, and drive torque is delivered through a shaft with a keyway, balanced with the entire key. No shaft seal ring is fitted, so external protection against coolant ingress is required. Electrical power is fed through a top-mounted connector plug, which helps keep cable routing compact inside the machine enclosure. The rotor is single-ended, and the motor uses standard rolling bearings together with a standard coolant connection.

The rotor is supplied without a holding brake, so static position retention must be provided by the drive or an external clamp. Power leads exit on side A, which suits common cabinet layouts and keeps the cable run aligned with the main connection side of the motor. The stator uses winding code BS, which sets the electrical values expected by the matched inverter. The absence of a second shaft end on side B reduces axial length and leaves one mechanical output point for the spindle train. If auxiliary components are used, they must be driven from the primary output side rather than from a rear shaft extension.