Product Description:

The MDD112B-N-020-N2L-130PA0 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Intended for use with digital drive controllers, the unit converts regulated three-phase current into accurate mechanical torque for axis positioning in machining centers, material-handling lines, and general automation. Its electromagnetic design supports closed-loop velocity and position control when paired with suitable power modules, making it a compact drive solution for mid-range rotary axes.

The motor has a nominal rotor velocity of 2000 rpm, which is the maximum continuous operating speed under rated voltage and frequency and allows moderate feed rates without excessive centrifugal stress. At standstill, it can deliver a continuous torque of 17.5 Nm, so holding and low-speed cutting loads can be handled without thermal overload. The flange has a centering diameter of 130 mm, and this machined register seats the housing concentrically on the machine frame for repeatable alignment. Position data are returned through digital servo feedback (DSF), giving the controller high-resolution rotor angle information for tight closed-loop regulation. Mechanical power is coupled through a shaft with a keyway, permitting positive engagement with pulleys or couplings and helping prevent slippage during dynamic reversals.

The motor is supplied without a blocking brake, so holding force must be provided by drive torque or an external clamping device when power is removed. Electrical and feedback terminations are brought out on side A through a sealed connector, simplifying cabinet wiring while keeping the housing free of additional cable glands. A built-in shaft seal helps protect the internal bearings from coolant splash and airborne particulates found on shop floors. The frame size code 112, together with length code B, places the unit in the middle of the MDD family for inertia and mass. Standard balancing minimizes residual vibration, and the single-ended shaft reduces overhung load on the rear bearing.