Product Description:

The MDD090B-N-040-N2L-110GR2 is a synchronous servo motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts commanded current into rotary motion for positioning, conveying, and other repeat-cycle tasks in automated machinery. The design uses a standard housing and standard rotor balancing, and it transmits mechanical power through a plain shaft with no side B extension. A blocking brake is integrated so the motor can hold the load when the controller is disabled. This operating style suits machine axes that must start, stop, and reposition with repeatable response.

The motor reaches a nominal speed of 4000 rpm, allowing rapid indexing when paired with a suitable inverter. At standstill, it can deliver 7.2 Nm continuously, which supports steady torque without overheating during rated operation. For short stops or controlled holding, the brake provides 11.0 Nm of torque. Rotor position is reported through digital servo feedback (DSF), and the power and feedback cables exit on the right side of the stator for compact cable routing. That combination supports responsive control during acceleration, deceleration, and dwell periods.

A centering pilot of 110 mm aligns the flange with gearboxes or machine frames, helping the motor seat accurately during installation. The rotor uses standard balancing to support smooth running at operating speed. Electrical connection is made through a plug-in connector, and the shaft is equipped with a shaft seal to help limit the entry of coolant splash or debris. Size code 090 with length code B gives the motor a compact form that fits many retrofit layouts while preserving the active magnetic length needed for servo duty. The compact frame also supports use in enclosed machine sections where coupling space is limited.