Product Description:

The ADF164B-B05TC0-AS07-A2N1/S032 is a liquid-cooled asynchronous main spindle motor built by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. As a main drive on machining centers and other automated equipment, the unit converts inverter output into continuous rotary motion for tool or workpiece spindles. Liquid circulation in the stator jacket extracts heat directly from the windings, allowing high continuous output while keeping the motor envelope compact for integration behind a standard ISO flange.

Standard deep-groove bearings support the rotor, and shaft vibration is governed by balance class R DIN ISO 2373, so residual forces on connected tooling remain low. The motor frame is size 164 with length code B, providing moderate inertia suited to spindle accelerations typical of machining tasks. A flange mounting interface centers the housing on the machine headstock, while the plain shaft design and the absence of a shaft seal ring simplify alignment. Because the motor uses a liquid-cooled asynchronous design, heat is removed through an external coolant circuit rather than airflow, permitting continuous operation in sealed cabinets. The AS winding code matches the stator impedance to compatible Rexroth drive modules, and the side B shaft end is omitted to free space for coolant connections.

A digital servo feedback encoder is integrated at the non-drive end, enabling position reporting to Indramat spindle drives without auxiliary sensors. Power conductors exit toward side A, and the junction box is located on the top of the housing for short cable runs inside vertical machine columns. Because the design uses a plain shaft, coupling devices can slide on without keyways, which helps minimize runout. The motor is supplied without a holding brake, so static holding torque must come from the inverter or an external clamp. No shaft seal ring is fitted, and the bearing set remains standard.