MDD071B-N-040-N2T-095PR1
The MDD071B-N-040-N2T-095PR1 is a synchronous servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts regulated three-phase stator currents into torque and speed for axes that require precise closed-loop motion. In automated production lines, this unit acts as the rotary actuator that follows position commands issued by the drive while feeding back actual position to the controller. This closed-loop arrangement helps maintain stable motion during repeated indexing, speed changes, and short settling times.
It can apply a continuous stall torque of 4.4 Nm, and the winding is designed to sustain that load thermally without extra cooling. During motion, the rotor can reach 4000 rpm, giving fast cycle times on moderate-inertia loads. Standard dynamic balancing limits residual vibration, while a centering flange of 95 mm supports concentric mounting to gearboxes or direct couplings. Cabling exits on the right side through a sealed connector, which helps keep wiring inside the machine footprint. The output shaft has a keyway, and only the drive-end shaft projects from the housing. A standard cast housing surrounds the stator and bearings, and the exterior has normal industrial paint for clean indoor environments.
For holding functions, the integrated brake supplies 3.0 Nm of static torque and clamps the rotor whenever controller power is removed. Feedback is exchanged through digital servo feedback, and the axis position is resolved by an integrated multi-turn absolute encoder that retains position information across multiple revolutions. An internal shaft seal sits behind the front bearing to block coolant splash and protect the grease cavity. Size designation 071 and length code B identify the active iron stack used to produce the stated torque in a compact housing. The encoder and brake arrangement supports controlled stopping and position retention at standstill.
