Product Description:

Bosch Rexroth Indramat manufactures the MDD090B-N-020-N2L-130PB0 as part of the MDD Synchronous Motors series. The motor operates as an electromechanical actuator that supplies controlled torque and speed to machinery when commanded by a digital drive controller. In industrial automation, it serves axes that demand repeatable positioning, allowing the controller to regulate current and generate proportional electromagnetic torque at the rotor during closed-loop motion.

The mechanical interface uses a centering diameter of 130 mm, letting the housing align precisely with compatible mounting flanges. Power and feedback conductors exit on side B, so cabinet layouts can keep cable runs short. A single connector plug combines motor power and signal pins, reducing wiring complexity. At standstill, the rotor can supply 7.2 Nm of continuous torque, so the axis can sustain moderate holding loads without overheating. The unit is balanced to the standard grade to minimize vibration, uses motor length code B, and ships without a blocking brake, so any static holding requirement must be met by the drive or external clamping devices. A standard housing protects the stator, and the shaft end is provided only on the drive side for compact installation.

Signal quality and motion accuracy rely on the integrated Digital servo feedback (DSF) encoder, enabling the drive to close position loops with sub-millisecond updates. When energized with rated voltage and frequency, the rotor reaches a nominal speed of 2000 rpm, giving a linear relationship between commanded frequency and shaft velocity over the usable range. Torque is transmitted through a shaft with a keyway, a common profile that simplifies hub machining. Contaminant ingress is limited by a design supplied with a shaft seal, so bearing grease is protected from coolant splash or airborne dust.