Product Description:

The MDD090A-N-040-N2L-110GB2 is a synchronous AC servo motor manufactured by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Intended for use with digital drive controllers, it delivers controlled rotary motion for industrial automation tasks such as indexing tables, articulated axes, and light-duty conveying stations, where compact size and repeatable performance are required. Its electrical interface and mechanical envelope follow established MDD conventions, allowing the unit to fit existing layouts without changes to the mounting surface. Its compact format also suits machine sections where installation space is limited but stable positioning is still required.

This model reaches a nominal speed of 4000 rpm, which is the upper continuous operating limit for the rotor. At standstill, it delivers 3.7 Nm of continuous torque, allowing the axis to resist static loads while maintaining thermal equilibrium. An integrated blocking brake supplies 11.0 Nm to secure the shaft whenever power is removed. Electrical terminations are placed on side B and use a sealed connector, which helps isolate the cabling from oil spray and supports short, direct cable runs to the cabinet. The housing uses standard dimensions and standard dynamic balancing to reduce transmitted vibration across the speed range.

The centering shoulder diameter of 110 mm provides an accurate reference surface for concentric installation against gearheads or flanges. Inside the frame, an encoder with digital servo feedback (DSF) transmits absolute position data to the drive for tight speed loops. The output shaft is supplied with a shaft seal so splash fluids cannot migrate along the journal. Its interface is a plain shaft, and the motor uses frame size 090 with length code A for a short electromagnetic stack that helps keep mass low while supporting the stated torque. This layout is useful on confined axes where a short motor body and protected shaft interface are preferred.