Product Description:

The MDD090B-N-040-N2M-130PA1 is a synchronous servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts regulated current from an inverter into mechanical rotation for axis positioning, conveyor sections, and packaging machinery. The model combines a size 090 stator frame with a length code B housing, and its standard balancing helps limit vibration as the rotor accelerates toward commanded motion. This arrangement supports repeatable movement on closed-loop axes that need stable control during frequent starts, stops, and indexing sequences.

At stall, the motor can sustain a continuous torque of 7.2 Nm, allowing it to hold loads without excessive heating while the drive maintains zero speed. Under rated electrical frequency, the rotor reaches a nominal speed of 4000 rpm, matching applications that need moderate linear velocity from belt or ball-screw transmissions. A blocking brake is integrated and delivers 6.5 Nm of holding torque, so vertical or suspended axes remain fixed after power is removed. The flange includes a centering diameter of 130 mm, providing an accurate pilot fit that keeps the servo coaxial with attached gearboxes or machine plates. Contaminant ingress is limited by a shaft seal, which helps keep lubrication in the bearing cavity while excluding splash and fine dust.

Power and feedback conductors leave the stator on the A-side, which can simplify cabinet cable routing when the motor is mounted with its connector end toward the drive panel. Position data comes from an integrated multiturn absolute encoder, giving the controller a unique rotor angle count across multiple revolutions without a homing routine. In addition, the drive receives high-resolution speed information through digital servo feedback (DSF), enabling tight velocity loops during rapid indexing. The shaft end is machined with a keyway, so standard keyed couplings or pulleys can be secured without custom hub features. The housing and connector layout fit common machine envelopes and help keep cable runs orderly in compact axis assemblies.