Product Description:

The MDD090C-N-040-N2M-130PB0 is a synchronous servo motor produced by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it provides rotary power and position feedback for automated axes in machine tools, packaging lines, and assembly systems. In these applications, the motor supports precise speed regulation and repeatable positioning during indexing, feed, and transfer motions. It is intended for use with Rexroth digital drive systems and matching motor feedback connections. Its 090 frame size with C length gives it a compact profile that fits machine layouts where mounting space is limited.

This model develops a continuous standstill torque of 10.4 Nm, and its rotor can reach a nominal speed of 4000 rpm when paired with the specified inverter. Position information comes from an integrated multi-turn absolute encoder, while velocity and commutation data are transferred through a connector on side B of the housing. Standard dynamic balancing helps reduce vibration during rapid cycles, and the motor uses natural convection for cooling so no external blower is required. The shaft end on side B is not machined, so the motor has a single drive-side coupling point. This arrangement keeps the mechanical output on one end of the motor and simplifies coupling to the driven axis.

A centering pilot of 130 mm aligns the motor accurately to machine frames, and a Digital servo feedback (DSF) channel links the encoder to compatible drives for closed-loop regulation. The output shaft uses a keyway and includes a shaft seal to help limit contaminant entry at the bearing area. Because the motor is supplied without a blocking brake, holding torque must be provided by the drive or by external holding hardware when power is removed. The housing style is standard, which supports straightforward integration into existing machine assemblies. This layout suits applications that require accurate rotary motion without an onboard holding brake.