Product Description:

The ADF134B-B05TA0-BS06-A2N3 is manufactured by Bosch Rexroth Indramat within the ADF Main Spindle Motors series. It is a main spindle drive for machining centers and automated production lines, where accurate speed holding and rapid load changes are required for milling, drilling, or grinding processes. By combining liquid cooling with an asynchronous rotor, the motor maintains continuous output without overheating, making it suitable for industrial automation cells that run around the clock.

A vibration grade of S1 DIN ISO 2373 limits residual imbalance and protects machine bearings at high rotational speeds. Position data is returned through digital servo feedback, which enables tight velocity loops inside the drive controller. Coolant enters the casing through an axial port with a 1/4-inch connection thread, so hose routing can stay parallel to the motor axis. Mechanical fixation uses flange mounting, which shortens stack length and aligns the 134 mm stator diameter with typical spindle housings. Power is delivered through a connector plug located on the top of the housing, with its cable outlet oriented toward Side A, simplifying cable chains on right-hand machine beds. Size code 134 and length code B indicate the active lamination depth, while winding code BS refers to the conductor cross-section selected for the required thermal class. Standard bearings support radial and axial forces generated by heavy tool cuts.

This motor is supplied without a holding brake, so axial clamping devices or drive torque must secure the spindle at standstill. A plain shaft interface allows direct coupling to precision tool clamping systems. The motor is a liquid-cooled asynchronous motor, and no shaft seal ring is fitted. The housing-top power box leaves room for through-spindle coolant unions, and the absence of a second shaft end reduces overhang mass on Side B.