Product Description:

The MDD071B-N-040-N2S-095GL1 is a synchronous servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Designed as a motor for digital drive controllers, it translates commanded current into controlled mechanical motion for positioning tasks in industrial automation systems. Mechanical vibration is limited by its standard dynamic balancing, helping the bearings meet rated life.

This model uses a centering pilot of 95 mm, which aligns the flange accurately on mounting surfaces. Power and feedback leads exit to the left side, an arrangement that can simplify cabinet layouts where clearance on the right side is restricted. The electrical interface is a single coaxial connector, so motor change-out involves no hard-wired terminations. At standstill, the stator windings deliver 4.4 Nm of continuous torque without exceeding permissible temperatures, making the unit suitable for tables or indexers that hold steady loads. Under rated excitation, the rotor reaches 4000 rpm, allowing moderately high process speeds without gear multiplication. A plain shaft is supplied, eliminating keyways that could introduce backlash in rigid clamp couplings.

The integrated blocking brake applies 3.0 Nm of holding torque to secure vertical axes when the drive is disabled, and it is released automatically by the controller during motion commands. Position verification is handled by digital servo feedback (DSF), which streams high-resolution rotor angle data for tight velocity loops. Length code B represents the medium stack in the 071 frame, balancing torque density with cabinet depth. Frame size 071 keeps mass and inertia lower than larger MDD variants, easing acceleration demands on the drive electronics. A shaft seal is fitted to block coolant or lubricant ingress, and the standard aluminum housing provides a consistent thermal path to the machine frame without additional fin packs.