Product Description:

The MDD071A-N-040-N2S-095PL2 is a synchronous motor produced by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Designed for digital drive controllers, it converts commanded inverter current into mechanical motion for positioning, conveying, or tooling axes in automated machinery. Its integrated feedback and standardized mounting format let it fit into closed-loop servo systems where accurate velocity and torque control are required.

At its nominal speed of 4000 rpm, the rotor can follow rapid command sequences without overshoot. It provides a continuous standstill torque of 2.2 Nm, allowing the motor to hold a load after indexing. A centering diameter of 95 mm aligns the flange to adjacent machine parts, and standard balancing limits residual vibration during high-speed operation. Position data is returned through digital servo feedback, so the drive can close the control loop with sub-millisecond updates. Power and feedback leads are routed through a single connector, reducing wiring complexity. The housing is the standard version, and a shaft seal helps keep lubricant out of the motor interior. Length code A indicates the shortest body in this frame, and the shaft is supplied in standard form without a second end.

For safety at power-off, the motor includes a blocking brake that clamps the rotor with 6.5 Nm of static torque, preventing Z-axes or suspended loads from drifting. All terminations exit on the left side of the frame, which can simplify cabinet layout when several axes are arranged in series. Mechanical coupling is through a shaft with a keyway, which helps resist slip under cyclical torque, and the integrated shaft seal helps maintain protection in oil-mist environments. The 071 stator package provides a compact frame with enough thermal mass for short acceleration bursts. The standard housing and balancing class support stable operation at high speed.