Product Description:

The ADF134B-B05TL0-BS07-A2N1/S032 is a liquid-cooled asynchronous main spindle motor produced by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. It is intended for CNC machining centers and turning machines, where it supplies regulated torque and speed to the spindle under changing loads. An internal coolant circuit removes heat from the stator, allowing rated output without external fans or recirculated cabinet air. This arrangement supports stable spindle speed during drilling, milling, and turning operations, and it helps limit heat buildup around nearby control components.

With a frame size of 134, the motor offers a large magnetic cross-section, while the B length code sets the overall stack height for a medium build envelope. Rotor balance conforms to R DIN ISO 2373, which helps reduce vibration at high spindle speeds. The cooling jacket connects through an axial 1/4-inch coolant thread, simplifying manifold plumbing in modular machine beds. Position data is returned through digital servo feedback with an integrated encoder, enabling real-time speed loops in Indramat drive controllers. Winding code BS is matched to liquid-cooled operation, standard rolling bearings support radial loads common in milling, and the motor is supplied without a holding brake, which avoids drag torque during high-inertia spindle duty.

The motor uses flange mounting, so the housing bolts directly to the machine head. Electrical power reaches the stator through a left-side power connector, and the insulated plug sits in a top housing entry to keep cable routing above the spindle area. Output torque is transferred through a plain shaft, so the mating connection must be provided by the driven spindle assembly. No key or taper is machined, and no shaft seal ring is fitted, so sealing must be provided at the spindle nose. The opposite end is closed because the model is delivered without a second shaft end, which helps maintain the standard bearing arrangement.