Product Description:

The MDD090A-N-020-N2L-130PA2 is a brushless AC servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. It is designed to operate with compatible digital drive controllers, providing closed-loop torque and velocity control for coordinated axes in machine tools, printing lines, and automated assembly stations. Its brushless design supports responsive motion while avoiding the wear associated with brushed motor constructions. This makes the unit suitable for applications that require repeatable positioning, stable speed regulation, and frequent start-stop operation.

The motor mounts over a 130 mm centering diameter that aligns the stator housing to the machine frame and helps keep radial runout low. Under rated excitation, it reaches a nominal speed of 2000 rpm, giving the axis a moderate base speed for feed drives and positioning tasks. At standstill, it can continuously deliver 3.7 Nm of torque, so the motor can resist load without excessive heat buildup while motion is paused. Power and feedback conductors exit on Side A, which can simplify cable routing in machine layouts that favor that connection direction. An integrated blocking brake provides a static holding torque of 11.0 Nm, allowing vertical axes to remain stationary when power is removed. Position data is returned through Digital servo feedback, so the drive receives rotor information for precise commutation and stable control behavior.

The motor uses Motor Size 090, which sets the flange pattern and overall diameter used across this frame class. A shaft seal limits dust or coolant ingress along the output spindle and helps protect bearing grease during continuous duty. Torque is transmitted through a keyed shaft, and the keyway helps prevent slippage between the motor and a coupled hub during acceleration and deceleration. The motor also uses a single-ended shaft and a housing suited for convection cooling, supporting installation in compact machine assemblies where straightforward thermal management is preferred.