Product Description:

The ADF164B-B05TC3-AS07-A2N1 main spindle motor is built by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. Designed for automated machining centers, it converts controlled inverter power into high-speed rotation at the cutting tool. The motor supports long duty cycles under heavy chip loads, and the standardized ADF platform supports integration within common spindle system layouts. As an induction design, it pairs with vector drives to maintain stable torque across a broad speed range. This arrangement suits applications that need stable speed during cutting passes and changing load conditions.

Size 164 laminations combined with frame length B set the motor’s physical envelope, while standard rolling bearings handle radial and axial forces typical of milling duty. Its balance class of R DIN ISO 2373 helps limit vibration that could mark the workpiece. Position feedback is provided by digital servo feedback with an integrated encoder, giving the CNC fine resolution for contour control. Process heat exits through an axial rapid action coupling that connects the coolant circuit quickly. Mechanical attachment uses flange mounting, and line conductors terminate inside a sealed junction box at the top of the housing with the conduit pointing toward side A, which helps keep cable trays and coolant hoses separate.

As a liquid-cooled asynchronous motor, the unit does not require an external fan, allowing fully enclosed spindle heads. It is supplied without a holding brake, so clamping devices or residual drive torque must secure the axis when power is removed. A plain shaft supports direct coupling to HSK or ISO tapers, and the design omits both a shaft seal ring and a second shaft end on side B to reduce leak paths. The motor uses winding code AS, which corresponds to conductor dimensions and thermal limits for the matched Indramat inverter. This arrangement keeps service points grouped in one area of the spindle housing.