Product Description:

The ADF164B-B05TD0-AS06-C2N1 is a liquid-cooled asynchronous main spindle motor produced by Bosch Rexroth Indramat within the ADF Main Spindle Motors series. The unit drives machine-tool spindles, providing the sustained torque and thermal stability needed for continuous cutting, boring, or grinding. Internal coolant passages carry heat away from the stator windings, so rated output can be maintained without derating. Integrated digital communication allows the motor to work with Indramat drive controllers for closed-loop speed and position control in automated machining cells.

The rotor is dynamically balanced to R DIN ISO 2373, which helps limit residual vibration that could affect surface finish at operating speed. A pair of standard rolling bearings carries radial and axial loads, and the encoder supplies digital servo feedback so the drive can correct speed deviations in real time. The motor has a frame size of 164, which gives it the outside diameter and magnetic cross-section for this design. The housing uses flange mounting to align the pilot register directly with the machine headstock. Power conductors terminate inside a top-mounted junction box, which simplifies cable entry from overhead carriers. A shaft seal ring protects the bearings from coolant, and the connection compartment is located on the top side of the motor to help keep chips away.

No holding brake is fitted, so spindle locking must be handled externally when power is removed. The stator stack length code B gives the motor a medium active length that balances torque with low moment of inertia. Power wiring exits the motor on side B, matching machines where the rear of the spindle faces the electrical cabinet. A plain shaft without a keyway minimizes imbalance and is intended for shrink-fit tooling, and the absence of a second shaft end on the rear face frees space for sensors. Winding designation AS indicates the conductor size and turn count used for correct voltage matching.