Product Description:

The MDD071B-N-030-N2G-095PB1 is a brushless AC servo motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts controlled current from an inverter into mechanical rotation for positioning, indexing, and speed-control tasks in automated machinery. It is intended for axes that require repeatable rotary motion in packaging, material-handling, and other industrial equipment. Size 071 stator laminations and the B-length active core provide a compact profile, while the standard housing and standard rotor balancing allow direct mounting without special supports. A single shaft end is supplied, which simplifies coupling alignment and leaves no extension on the opposite side.

During stationary load conditions, the motor can deliver a continuous torque of 4.4 Nm. This is the thermal limit of the energized winding with the rotor locked, so it indicates how much static load the axis can carry without overheating. Under rated excitation, the rotor reaches a nominal speed of 3000 rpm, which suits positioning and velocity-control cycles commanded by the drive. The motor includes a permanently engaged brake with a holding torque of 3.0 Nm, and position data are returned through resolver feedback for sinusoidal commutation. This feedback arrangement allows the connected controller to track rotor position continuously during operation. Torque is transmitted through a shaft with a keyway, which provides secure engagement with pulleys or couplings.

Cabling is straightforward because the power and sensor connectors are located on side B, and the motor uses a keyed connector interface to help prevent wiring inversion. The centering pilot is ground to 95 mm, which aligns the motor accurately to the machine frame and helps keep runout within tolerance. An integral shaft seal blocks lubricant ingress along the output journal, which supports enclosed installations when the motor is coupled to gearboxes or ball screws. This layout also keeps the cable exit on one end of the housing, which can make routing easier in compact assemblies and reduce interference with nearby machine components.