Product Description:

The ADF104C-B05TA1-AS06-A2N2 is a main spindle motor manufactured by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. It belongs to a range of liquid-cooled asynchronous motors intended to drive milling, turning, or grinding spindles in automated machining centers. By circulating coolant through the stator jacket, the unit keeps winding temperatures controlled and sustains repeatable torque during extended duty cycles. In machine-tool service, it is typically paired with a matching drive so spindle speed can remain stable through cutting passes, tool changes, and varying load conditions.

The rotor-stator assembly is balanced to S DIN ISO 2373, which helps reduce vibration that could shorten bearing life and affect surface quality. The motor has a frame size of 104, while length code C indicates the active core depth used for higher power density. Machine integration is handled through flange mounting, which positions the motor coaxially with the spindle nose. Closed-loop regulation is achieved by digital servo feedback, which sends high-resolution position data to the drive controller. Three-phase conductors terminate in a top-mounted connector, helping keep power cables clear of coolant lines. A standard bearing set, an AS winding code, and a standard coolant port support consistent electrical and thermal behavior during continuous spindle operation.

Because the unit is supplied without a holding brake, braking torque must be provided by the inverter or by an external clamp when the spindle is at rest. Output power is transferred through a plain shaft without a seal ring, so fluid exclusion relies on the machine's own labyrinth or air-purge system. All electrical terminations are oriented toward side A, allowing uniform cable routing on multiple heads and keeping the cable bundle on one side of the machine. The motor omits a second shaft end on side B to shorten overall length, and the standard bearings can support the overhung belt loads commonly found in multi-axis machining centers.