Product Description:

The ADF104C-B05TA1-BS06-A2N2 spindle motor is manufactured by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. It converts three-phase electrical energy into regulated mechanical speed for machine-tool spindles. Its liquid cooling circuit maintains steady thermal conditions during prolonged cutting cycles in automated production cells, which helps limit thermal drift during long machining operations. This arrangement supports stable spindle speed during drilling, milling, and similar machining tasks where load can change quickly.

With a frame size of 104, the motor delivers high torque density while keeping the mounting footprint compact. The motor uses flange mounting, which provides radial stiffness for precision cutting. It belongs to the class of liquid-cooled asynchronous motors, so heat is removed by a standard coolant manifold and enclosure airflow is unnecessary. Closed-loop positioning is achieved by digital servo feedback, allowing the drive controller to correct speed deviations in real time. The stator terminals are oriented toward Side A, and the connector housing is located on top of the motor for a plug-style power lead. A standard bearing set supports the rotor, the active length is C, and a plain connector on the front plate handles the coolant supply.

Operational smoothness is enhanced by a balance grade of S DIN ISO 2373, minimizing vibration at high spindle speeds. The unit is supplied without a holding brake, so braking torque must be provided externally when position locking is required. A plain shaft transmits torque directly to the spindle nose, and no shaft seal ring is installed because the application normally provides its own sealing. The winding code BS indicates the electrical resistance and thermal behavior under continuous load. There is no second shaft end on the rear face, and the power interface uses a plug-in connector for straightforward cable connection while keeping the rear housing free of auxiliary drive output hardware.