Product Description:

The ADF134B-B05TL0-BS07-A2N1 is a liquid-cooled asynchronous spindle motor from Bosch Rexroth Indramat, supplied within the ADF Main Spindle Motors series. It serves as the primary drive for machine-tool spindles, converting electrical energy into controlled rotational motion that supports milling, drilling, or grinding processes in automated lines. The liquid cooling circuit allows high continuous power density while the integrated encoder maintains speed stability under variable mechanical loads, making the unit suitable for precision metal-cutting centers.

Dynamic accuracy begins with the balance grade of R DIN ISO 2373, which limits residual vibration so high-speed spindles run smoothly with reduced bearing stress. Heat is removed through an axial 1/4-inch thread coolant port routed directly into the stator jacket, which helps prevent thermal growth that could affect machining tolerances. Position feedback relies on digital servo feedback, and the encoder streams absolute position data to the drive for closed-loop speed control. The motor frame is size 134 with length code B, providing a medium-inertia profile appropriate for moderate acceleration rates. Mechanical attachment is by flange mounting, allowing the housing to bolt directly to the spindle head without additional brackets. A standard rolling-element bearing set supports the rotor under radial and axial forces.

Electrical cabling exits to the left and is protected by a top-mounted connector housing that uses a connector/plug power interface, which helps when space beside the spindle is restricted. Torque is transmitted through a plain shaft; no seal ring is installed, and there is no secondary shaft end on side B, so external sealing and auxiliary tooling must be handled by the machine builder. The motor is supplied without a holding brake, and its coil arrangement uses winding code BS, which pairs with corresponding inverter parameters for nominal current, torque constant, and thermal limits.