Product Description:

The ADF104C-B05TB1-AS06-A2N1 main spindle motor is produced by Bosch Rexroth Indramat within the ADF Main Spindle Motors series. Classified as a liquid-cooled asynchronous motor, it drives high-speed machining spindles in automated lines where stable torque and temperature control are critical. Liquid circulation through the housing extracts stator heat, so the motor can sustain rapid cutting, drilling, or grinding cycles without thermal derating. This cooling method supports steady spindle behavior during long machining passes and repeated duty cycles.

The motor uses integrated digital servo feedback, which reports rotor position to the inverter in real time. The rotor is balanced to grade R DIN ISO 2373, limiting vibration and extending bearing life at elevated speeds. Mechanical attachment is via flange mounting, allowing direct seating against the machine frame. Winding code AS identifies the electrical values used by the paired drive for current matching and stable speed control. Power conductors exit toward side B, and the connector housing is positioned on top of the stator to route cables clear of coolant hoses.

The unit has motor size 104 with motor length C, giving a compact profile for restricted headstocks. It uses a plain shaft and comes without a holding brake, reducing inertial load and favoring direct coupling to the spindle nose. A single plug-in power connection simplifies electrical removal when the motor must be disconnected from the machine. Standard deep-groove bearings carry radial and axial loads. The coolant and power interfaces follow the series’ standard layouts. There is no shaft seal ring and no second shaft end on side B, which avoids additional friction paths during continuous service. The single-ended shaft arrangement also leaves the non-drive end free of extra couplings or pulleys.