Product Description:

The ADF164B-B05TC0-AS07-A2N1 is a main spindle motor produced by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. It is a liquid-cooled asynchronous design intended to drive machine-tool spindles that require continuous torque delivery and accurate speed regulation during milling, drilling, or grinding operations. By integrating the motor directly on the spindle flange, the unit eliminates intermediate belt stages and supports compact, high-stiffness mechanical layouts common in modern CNC machining centers.

The rotor meets the R DIN ISO 2373 balance grade, so radial vibration forces remain low even at elevated rotational speeds. Position and velocity data are supplied through digital servo feedback with an integrated encoder, which allows the drive controller to apply precise vector control and maintain repeatable tool paths. A flange mounting interface on the stator housing simplifies alignment with precision machine frames and contributes to thermal conduction into the coolant jacket. The motor is delivered without a holding brake; therefore, axial locking during power-off conditions must be handled by an external clamp or the drive itself. A plain shaft output eliminates keyways, permitting force-fit toolholders that minimize runout when transmitting high spindle torque.

Power conductors are routed toward Side A, and the junction box sits on the top of the housing, giving clear access for cabling within crowded headstocks. The stator jacket is liquid-cooled, so waste heat is removed through a closed coolant circuit and ambient airflow inside the enclosure is not required. Size code 164 supplies a large active iron volume that supports high continuous power, while length code B provides a shorter stack for machines that need reduced overhang. The motor omits a shaft-seal ring and a second shaft end, limiting possible leakage paths and simplifying integration with angular contact bearing sets used in high-speed machining.