Product Description:

The MDD071B-N-N2T-095PA1 is a brushless synchronous servo motor manufactured by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Intended for digital drive controllers, it delivers rotational power and precise feedback so automation axes can be positioned accurately in packaging lines, material-handling modules, and other industrial equipment. Its electrical and mechanical features are suited to repetitive start-stop duty, making the unit well suited for servo applications that require tight velocity and position loops.

At the mechanical interface, a continuous standstill torque of 4.4 Nm allows the shaft to hold loads during dwell periods without excessive temperature rise. The centering shoulder measures 95 mm in diameter, guiding the motor into a flange recess to maintain concentricity. The DSF multiturn feedback system provides an absolute detection range of 4096 rev and a fine position resolution of 2097152 inc/rev. Combined with a system accuracy of ±0.5 angular min, this supports high-precision interpolation at the controller. The motor has frame size 071 and length code B, and the standard housing meets the IP65 protection rating against dust and water jets. Operation is permitted up to 1000 m above sea level.

The motor’s holding function is delivered by a permanent-magnet brake that produces 3.0 Nm of static torque. The brake coil is energized with 24 VDC and draws 0.6 A when the controller issues a release command. A clamping delay of 15 ms and a release delay of 30 ms coordinate mechanical locking with enable signals. The brake adds 0.38 × 10⁻⁴ kg·m² of inertia and 0.3 kg of mass, which should be included in load calculations. A 6 × 6 × 32 mm shaft key transmits torque to couplings, and the sealed housing helps keep coolant spray away from internal windings.