Product Description:

The MDD090B-N-020-N2L-110PA1 is a synchronous servo unit produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it converts commanded current from a compatible inverter into precise rotary motion that can be coordinated with PLC logic in automated machinery. Typical uses include positioning axes, tool drives, and material-handling stations where dynamic response and feedback-controlled accuracy are required.

Under continuous stall conditions, the rotor can deliver 7.2 Nm of torque, allowing the axis to hold loads without motion when commanded current is maintained. During motion, the motor reaches a nominal mechanical speed of 2000 min⁻¹, a rating that aligns with medium-speed machining and conveying tasks. A blocking brake is integrated, and its static holding capability is 6.5 Nm, so vertical loads can remain secured after power is removed. Position feedback is provided by digital servo feedback (DSF), which transmits high-resolution rotor angle data to the drive for closed-loop control. For protection, the front bearing area is supplied with a shaft seal, preventing lubricant egress and particulate ingress at the shaft-housing interface.

Mechanical integration is simplified by a centering feature that measures 110 mm in diameter, matching standard flanges on gearboxes and machine frames. The frame code 090 refers to the stator outer dimension used across this series and matches installations built for that motor size. Power and feedback conductors exit on side A, so cabinet routing can be planned without cable loops around the housing. Final torque transfer occurs through a keyed output shaft, and the keyway provides positive coupling to pulleys or couplings while resisting slippage under cyclic load. Standard dynamic balancing and a connector-style wiring interface complete the installation features without adding extra alignment or terminations.