Product Description:

The MDD090B-N-040-N2L-130GL2 is a permanent-magnet synchronous motor produced by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it pairs with Rexroth servo amplifiers to deliver closed-loop torque and speed regulation in automated assembly, packaging, and material-handling stations. By combining size code 090 with length code B, the unit keeps a compact mechanical footprint while supporting the duty cycles common to mid-range industrial axes. Its synchronous design also helps the drive maintain smooth motion response during repeated positioning and speed changes.

At its rated operating point, the rotor reaches a nominal speed of 4000 rpm, enabling direct coupling to belts or gear stages that require high shaft velocity. Continuous stall capability is 7.2 Nm, so the axis can hold position without thermal overload when the machine is idle but energized. For emergency stops or gravity-loaded mechanisms, the blocking brake supplies 11.0 Nm of static torque, and it is released when drive power is applied. Position data is returned through digital servo feedback, allowing the controller to correct speed and position error during operation. A shaft seal is fitted to reduce lubricant escape and to keep contaminants out of the bearing cavity. Cable terminations use a locking connector that mates with the drive’s hybrid cable, helping keep wiring secure during machine movement.

Mechanical alignment is centered by a 130 mm pilot diameter that mates with precision mounting flanges. The rotor and fan are balanced to Standard quality, keeping vibration within accepted limits at full speed. Drive torque is transferred through a plain shaft with a standard single-ended geometry, so there is no secondary shaft on side B. Power and feedback ports face the operator side because the connection direction is Left, which can keep cable routing consistent across adjacent axis modules. This arrangement also leaves the standard housing profile free from additional glands and helps preserve clearance around the coupling area.