Product Description:

The MDD090B-N-040-N2L-110PL0 is a synchronous motor produced by Bosch Rexroth Indramat for the MDD Synchronous Motors series. It serves as a drive element for digital drive controllers, supplying rotational motion to axes that require accurate speed and position regulation in automated machinery. The motor is intended for use in closed-loop motion systems where the drive continuously corrects speed and position during operation. A standard-balanced rotor and a standard housing let the unit mount directly to machine frames without additional vibration control. The model is supplied without a blocking brake, so braking torque must be provided externally when power is removed.

The mechanical interface uses a centering diameter of 110 mm, which aligns the flange precisely with gearboxes or servo adapters. Power and feedback conductors exit on the left side through a sealed connector, reducing cable loops inside cramped cabinets. The sealed connection also helps keep external wiring organized when space around the motor is limited. At standstill, the motor can deliver 7.2 Nm continuously, allowing it to hold tooling or conveyor sections in position while drive current remains within safe thermal limits. Position feedback is handled by digital servo feedback, and the encoder supplies high-resolution signals for closed-loop regulation. The stator is wound for a nominal speed of 4000 rpm, which suits applications that require high throughput with limited gear reduction.

A factory-installed shaft seal protects the internal bearings from coolant splash and airborne contaminants, supporting IP65-class installations. The output shaft is machined with a keyway so couplings can transmit torque without slip, and a standard single-ended form means no shaft projects from side B. This arrangement leaves the opposite end clear and keeps the mechanical interface focused on the drive end of the motor. Frame designation 090 identifies the stator diameter, while length code B indicates the medium body size and gives a balance between inertia and continuous power. Standard balancing avoids additional counterweights, and the connector style lets wiring harnesses mate directly without terminal blocks.