Product Description:

The MDD090B-N-040-N2M-110PR2 is an AC synchronous servo motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. As a motor for digital drive controllers, it supplies closed-loop torque and speed in automated machinery where coordinated motion is required. The design couples an internal resolver-based feedback system with permanent-magnet excitation to support fast index moves, repetitive cycles, and continuous-duty tasks in packaging, material handling, and general assembly lines. Its compact housing eases direct motor mounting inside multi-axis gantries. This arrangement supports reliable servo performance during repeated start-stop operation and synchronized path control.

The motor delivers a continuous standstill torque of 7.2 Nm, allowing the axis to hold static loads without overheating when the shaft is locked. Under rated excitation, it reaches a nominal shaft speed of 4000 rpm, which suits high-throughput linear stages that demand quick repositioning. Mechanical interfacing is simplified by a centering diameter of 110 mm, which aligns the flange with gearbox or machine faces. A blocking brake incorporated in the end bell supplies 11.0 Nm of holding torque to secure vertical loads during power loss. Power, feedback, and brake leads exit on the right side, and the motor uses a plug-in connector arrangement for orderly cable routing. This layout keeps the cable exit concentrated on one side of the motor body. Standard dynamic balancing limits vibration, the B length code indicates the rotor stack used in the sealed housing, and the motor has a single-ended shaft without a side B extension to reduce overall length.

Control accuracy is maintained through digital servo feedback sent from the multiturn absolute encoder, enabling the drive to resolve position across multiple revolutions without homing after power cycles. The rotor uses a keyway shaft to transmit torque into pulleys or couplings without slippage, and a shaft seal helps prevent contamination from entering the motor cavity. The frame size of 090 fits MDD mounting patterns, which supports installation in machine layouts built around this motor family. The standard housing and connector arrangement remain consistent with other motors in the series, helping maintain a uniform mechanical interface across modular systems and mixed axis groups.