Product Description:

The ADF104D-B05TA1-AS06-C2N1 is a liquid-cooled asynchronous main-spindle motor produced by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. It drives machining spindles that require continuous torque and high thermal stability, using internal coolant circulation to remove heat generated during prolonged cutting or grinding cycles. The motor integrates into numerically controlled machine tools where precise speed regulation and reliable torque delivery are essential for maintaining surface finish and dimensional accuracy.

This model is built around a 104 frame that provides the stator cross-section needed for heavy-duty spindle loads, while the length code D extends the magnetic path for higher power density. Mechanical attachment relies on flange mounting, so the housing mates directly with the machine headstock to minimize radial runout. Electrical conductors exit on Side A, and the connector housing is positioned on the top of the stator, simplifying cable routing in vertical spindle orientations. Rotor position is monitored through digital servo feedback, allowing the drive to synchronize speed with contouring commands and compensate dynamically for load disturbances.

Rotational smoothness is classified in balance grade R DIN ISO 2373, which helps reduce vibration that could mark workpiece surfaces. For applications that depend on external braking systems, the unit is supplied without a holding brake, which avoids unnecessary inertial drag inside the spindle bore. A sealed housing protects the bearings because the shaft is fitted with a shaft seal ring. The motor also uses a plain shaft design for friction-fit tool clamping systems, and there is no secondary shaft end on Side B. Standard deep-groove bearings, a coolant connection prepared for conventional fittings, and winding code AS complete the configuration.