Product Description:

The MDD090B-N-040-N2M-130GR2 is a synchronous servo motor manufactured by Bosch Rexroth Indramat and assigned to the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts regulated current from an inverter into controlled mechanical rotation. This allows automated machines to position loads accurately and repeatably in assembly cells, packaging lines, and material-handling axes.

A centering flange diameter of 130 mm aligns the housing to the driven machine, while the rotor is balanced to a standard grade to reduce vibration. Power and feedback conductors exit on the right side through a plug-in connector, which helps keep cable routing straightforward. The motor delivers a continuous standstill torque of 7.2 Nm, so it can hold static loads without overheating, and its windings support a nominal speed of 4000 rpm for fast point-to-point moves. A shaft seal helps block dust ingress and limit lubricant escape at the interface with the plain output journal. The housing is the standard uncooled version, so thermal dissipation relies on ambient airflow around the frame. The motor has no shaft end on side B, leaving only the drive-side journal available for couplings.

For power-off holding, a blocking brake supplies 11.0 Nm of torque and clamps the rotor until commanded to release. Position data comes from an integrated multiturn absolute encoder, and the drive reads that signal through digital servo feedback (DSF) to close the motion loop without external transducers. The output end is a plain shaft, allowing the use of clamping hubs or keyed collars as needed. Size code 090 and motor length code B indicate the active magnetic stack and correspond to predictable inertia and mounting dimensions. A standard housing finish supports installation in general-purpose industrial enclosures.