Product Description:

The MDD090A-N-040-N2M-110PA2 belongs to the MDD Synchronous Motors series from Bosch Rexroth Indramat. It is a synchronous motor for digital drive controllers and supplies closed-loop rotary motion to positioning axes, pick-and-place heads, and similar automation equipment. The unit combines the stator windings, rotor, feedback device, and brake in one housing, which reduces the number of external components around the axis. This integrated layout keeps the installation compact and lets the matching drive receive motor signals directly through the built-in interfaces.

The motor delivers a continuous standstill torque of 3.7 Nm, allowing it to maintain load at zero speed without excessive heat during normal operation. During motion, its nominal speed is 4000 rpm, which supports fast indexing and short travel cycles on high-speed machinery. Mechanical centering uses a 110 mm pilot diameter to align the flange accurately on the machine frame. Power and feedback cables exit on side A, so multiple motors can be mounted with the same cable direction in tightly arranged assemblies. A sealed circular connector set completes the wiring interface and eliminates the need for a separate terminal box.

An integrated blocking brake provides 11.0 Nm of static holding torque, helping an axis remain in position when drive power is removed. Output torque is transferred through a shaft with a keyway, which fits common couplings and transmission elements. Motion data returns to the controller through Digital servo feedback (DSF), and position is tracked by an integrated multi-turn absolute encoder so the axis can report its location after power cycling. A front shaft seal helps protect the bearing area from splash and dust during routine machine operation. The A-length frame keeps the motor shorter in the axial direction for compact installations. The 090 size fits machines where space is limited but accurate servo response is still required.