Product Description:

Bosch Rexroth Indramat manufactures the MDD090B-N-020-N2M-130PB1, a synchronous motor in the MDD Synchronous Motors series. The unit is intended for use with digital drive controllers, where it converts commanded current into rotary motion for axes on assembly lines, material-handling cells, and metal-cutting machines. By using permanent-magnet excitation and electronic commutation, the motor maintains stable speed under changing load while fitting a compact frame for machine-mounted installations. This motor type is suited for applications that require controlled torque, speed, and position in a compact servo axis.

The MDD090B variant has a centering diameter of 130 mm, which helps seat the flange concentrically on the machine. Under continuous stall conditions, the stator can produce 7.2 Nm of torque without exceeding thermal limits, and rated operation sustains a nominal shaft speed of 2000 rpm. A blocking brake is integrated and provides 6.5 Nm of holding torque when power is removed. All power and feedback conductors exit from side B, which helps route cables toward the rear of deep cabinets. Standard rotor balancing helps limit vibration so the motor can be coupled directly to precision gearheads or other driven elements.

A front-mounted connector mates with shielded cables used for the series, helping maintain reliable signal transmission. Inside the housing, an integrated multi-turn absolute encoder tracks rotor position over multiple revolutions and sends data through digital servo feedback (DSF) to the drive for closed-loop control. The motor includes a shaft seal to help protect internal bearings from dust and splash, and power is transmitted through a single shaft end with a keyway. The opposite shaft end is not present, which keeps the output arrangement simple. This layout supports direct coupling to driven components while preserving accurate torque transfer.