Product Description:

The MDD090C-N-040-N2L-130GR1 is a motor for digital drive controllers produced by Bosch Rexroth Indramat and included in the MDD Synchronous Motors series. This AC synchronous unit converts commanded drive currents into precise rotary motion for positioning axes, packaging lines, and similar industrial automation tasks that require feedback-controlled speed and torque. Its synchronous design supports accurate motion response during repeated starts, stops, and speed changes. Position data is returned through digital servo feedback (DSF), enabling the drive controller to close the velocity and position loops without external encoders. That arrangement lets the connected controller monitor rotor position continuously and apply stable speed correction under changing load.

The rotor and stator are built around a 130 mm centering diameter that mates with machine frames, while the C motor-length code provides an intermediate active stack in the 090 size class. The centering feature helps align the housing on the mounting surface, which supports repeatable installation and coupling accuracy. The motor has a nominal speed of 4000 rpm, allowing fast cycle times when coupled to matching gear stages. At stall, the winding can sustain 10.4 Nm continuous torque at standstill, which supports holding force under continuous load. All power, brake, and feedback leads terminate on a single connector interface, which helps keep cable routing compact. Output torque is transferred through a plain shaft, which avoids the stress concentration associated with a keyed shaft.

The mechanical holding system includes a blocking brake with 6.5 Nm holding brake torque, keeping vertical loads in place when power is removed. This brake is intended for holding rather than dynamic stopping duty during normal motion. Service access is aided because the motor’s cables exit on the right-side connection, which suits layouts that route harnesses along the machine base and can reduce bend stress near the housing. Dynamic equilibrium is set to standard balancing, so the motor runs with controlled vibration in typical automation duty. A shaft seal protects the front bearing against coolant splash, and the single-ended shaft layout helps keep the motor compact while reducing contamination at the bearing area.