MDD071B-N-030-N2M-095GB1
The MDD071B-N-030-N2M-095GB1 synchronous motor is produced by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. It is intended for use with digital drive controllers where precise torque and speed regulation are required for industrial positioning axes. Model size 071 and length code B indicate the frame envelope, while the standard balancing and housing match common MDD mounting dimensions used in compact servo installations. The motor includes a plain shaft and an internal blocking brake so the driven load can remain stationary after power is removed, making it suitable for vertical axes, index tables, and other applications that must hold position between motion cycles.
The mechanical interface centers on a 95 mm pilot diameter that aligns the stator to the machine frame without additional bushings. Power and feedback leads exit on side B, and a keyed connector provides a secure cable interface without opening the housing. At 40 °C ambient, the motor can deliver 4.4 Nm of continuous torque while at standstill, supporting low-speed holding tasks with minimal heating. When energized from the associated drive, the rotor can reach a nominal speed of 3000 rpm, matching common 0.3 kW to 0.5 kW load demands in packaging, handling, and light indexing equipment. Standard shaft-end geometry permits coupling with belt pulleys or rigid clamping hubs without secondary machining.
The blocking brake is rated for 3.0 Nm, providing enough static torque to secure moderate loads without relying on external clamps. Position data are supplied by an integrated multi-turn absolute encoder, and commutation signals are returned through digital servo feedback (DSF) so the drive maintains closed-loop control after power cycles and reports rotor position immediately at startup. A factory-installed shaft seal protects the front bearing against coolant splash and airborne particles, supporting IP65 integration when paired with seated connectors. The sealed front end is useful in machine areas where coolant mist or fine debris is present.
