Product Description:

The ADF132C-B05TB1-ES03-B2N2 main-spindle drive is a liquid-cooled asynchronous motor produced by Bosch Rexroth Indramat within the ADF Main Spindle Motors series. In a machining center, it mounts on the spindle housing and supplies the rotary power that turns tools and workpieces at commanded speeds. Coolant circulates through the stator jacket to remove heat during continuous operation, which supports long machining cycles without pauses for thermal recovery. This cooling method helps the motor stay stable during extended cutting passes where steady spindle output is required.

With a frame diameter of 132 mm and internal length code C, the motor fits mid-range spindle assemblies while maintaining torsional stiffness. The unit is a liquid-cooled asynchronous motor, so cooling depends on the standard side ports rather than ambient air. A flange mounting interface centers the housing on a precision pilot and transfers cutting forces directly to the machine structure. Because it is supplied without a holding brake, the controller must provide torque when the spindle needs to remain stationary. Vibration stays within the S DIN ISO 2373 balance class, which helps support smooth rotation and consistent surface quality during machining.

The motor uses high-resolution motor feedback to send rotor angle data for accurate contouring and stable speed regulation. Power reaches the stator through a connector plug mounted on side B, and the connection point is placed at the top of the end bell so cable routing stays clear of the coolant lines. This layout separates the electrical connection from the hose path and keeps the installation area less crowded around the housing. The shaft is keyed and balanced with the full key installed to reduce running asymmetry during operation. The design does not use a shaft seal ring because the flange fit provides splash protection, and only one shaft end is provided so no accessory coupling is exposed on the opposite side. The ES winding code matches the electrical characteristics used with standard Indramat inverter outputs.