MDD071B-N-030-N2G-095GB0
The MDD071B-N-030-N2G-095GB0 is a synchronous AC servo unit built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts commanded current into precise rotary motion for gantries, packaging machinery, and other position-controlled axes within industrial automation cells. For position feedback, the motor integrates resolver feedback, allowing the drive to monitor rotor position during high accelerations.
At the mechanical interface, the centering flange is 95 mm in diameter, which establishes the reference surface that aligns the housing with gearboxes or machine plates. During holding operation, the rotor can sustain a continuous torque of 4.4 Nm, enabling reliable tensioning or indexing without thermal overload. Dynamic motion is supported by the nominal speed of 3000 rpm, a value matched to commonly used 1 kHz control loops for fast positioning. Electrical and signal terminations are routed on Side B, and all conductors are landed through a sealed connector, simplifying cabinet wiring. The unit is supplied in size 071 with the B length code and uses a standard aluminum housing that dissipates internally generated heat through convection.
The output shaft is a plain shaft, making it compatible with clamp couplings or press-fit pulleys, and a positive-lip shaft seal helps keep lubricant inside while blocking coolant spray. Because the design is without a blocking brake, stopping torque must be provided by the drive or an external mechanical lock when power is removed. Rotor and flange are manufactured with standard balancing, reducing vibration when the motor reaches top speed. A standard shaft end configuration omits a secondary shaft on the non-drive side, further shortening the package length and simplifying guard design. The housing carries a standard finish, and the rear connector orientation keeps cabling clear of the mounting face.
