Product Description:

The ADF104C-B05TB1-AS07-A2N2 belongs to the ADF Main Spindle Motors series produced by Bosch Rexroth Indramat. It is a liquid-cooled asynchronous motor intended for main spindle duty in machine tools where stable torque, high speed, and controlled heat dissipation are important. This layout helps keep temperature more consistent during long machining cycles and supports steady output under changing spindle loads. An integrated encoder lets the motor exchange position and speed data with a digital drive controller in real time. This supports closed-loop control in cutting, grinding, and forming applications.

The rotor is balanced to DIN ISO 2373 grade S, which helps reduce vibration at the spindle during high-speed rotation. Position feedback is supplied through digital servo feedback, so the drive can regulate speed precisely without external sensors. The motor is built without a holding brake, so holding force must be supplied by drive torque or an external clamp when power is removed. It has a frame size 104 and uses flange mounting for direct attachment to a spindle headstock. Power enters through a connector on Side B, and the connector housing is located on top of the stator for easier cable routing in vertical installations.

The motor has a plain shaft, and it does not use a second shaft end, which keeps the output arrangement simple for spindle service. This shaft arrangement also reduces extra rotating mass at the rear of the motor and leaves more space for adjacent machine components. Its winding code AS matches the electrical characteristics expected by the paired drive and supports the thermal model used during operation. Motor length code C gives the unit a medium active core, while standard bearings and a standard coolant connection keep the mechanical layout straightforward. Because the power end has no shaft-seal ring, the installation should prevent coolant or chips from reaching the bearing chamber.