Product Description:

The ADF132C-B05TB1-ES03-B2S3 is a main-spindle drive engineered by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. As a liquid-cooled asynchronous unit, it supplies continuous rotary power to machining centers, grinding stations, and other automated equipment that require high spindle speeds with controlled thermal stability. The motor couples directly to the machine spindle, allowing the connected drive controller to regulate torque and velocity precisely during cutting, drilling, or finishing cycles where consistent spindle response is required and load changes occur rapidly from one machining step to the next.

The motor is balanced to S1 DIN ISO 2373, minimizing radial vibration at elevated speeds. Axial and radial loads are absorbed by a dedicated spindle bearing set, which supports long operating periods in demanding production use. Installation relies on flange mounting, so the 132 mm frame and length code C align rigidly with the machine housing. Position data is returned through high-resolution motor feedback, enabling tight speed loops within the drive controller. Three-phase power reaches the stator through a rugged connector and plug assembly that exits toward side B and sits on top of the housing for straightforward cable routing, while a standard coolant port circulates water-glycol around the stator jacket to remove waste heat and keep surrounding machine space clear.

Thermal control is reinforced by the liquid-cooled asynchronous motor design, which allows rated output without airflow inside a sealed cabinet. Electrical characteristics correspond to winding code ES, matching the drive's voltage and frequency profile for this spindle family. The motor is supplied without a holding brake, so static position retention must be provided by the drive or by external clamps when power is removed. Torque is transferred through a shaft with keyway, balanced with entire key, and the design omits a shaft seal ring and a second shaft end to reduce friction surfaces and simplify coolant containment inside the bearing chamber.