Product Description:

The ADF134B-B05TC3-BS00-C2N1 is a liquid-cooled asynchronous main spindle motor manufactured by Bosch Rexroth Indramat within the ADF Main Spindle Motors series. As a main drive unit, it converts electrical energy into the continuous rotary motion required by machining centers and other production equipment, providing high spindle speeds under stable thermal conditions. Its construction supports integration into closed-loop or open-loop drive systems where accurate speed regulation, high duty cycles, and a compact footprint are required in industrial automation.

This model has a balance grade of R DIN ISO 2373, which helps limit vibration transmitted to the machine frame and can improve surface finish on the workpiece. The motor uses frame size 134, which corresponds to the stator diameter used for this housing size and torque range. Mechanical connection to the machine bed is achieved through flange mounting, which centers the unit and simplifies axial alignment. Liquid enters through an axial rapid-action coupling, so coolant lines can be disconnected quickly without draining the entire circuit. Because the motor is supplied without an encoder unit, speed feedback must be provided by an external sensor or the drive must operate in sensorless mode.

Electrical power is routed through a junction box, which provides screw-terminal access for both mains and protective earth conductors. The rotor drives a plain shaft, a configuration commonly used with clamping or keyless tool holders. A shaft seal ring helps prevent coolant or cutting fluid from migrating along the shaft bore. Cabling exits the housing on side A, and the cast terminal box is positioned on the top of the frame to reduce floor-level obstructions. The motor is assembled without a holding brake or a second shaft end, and its winding code BS and length designation B correspond to the thermal and electrical characteristics used by matching drive controllers.