MDD021A-N-100-N2G-032FC0 Bosch Rexroth Indramat
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MPN: R911260599
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The Bosch Rexroth Indramat MDD021A-N-100-N2G-032FC0 is a motor used with digital drive controllers from the MDD Synchronous Motors series. It features a nominal speed of 10000 min⁻¹, standard housing, and resolver feedback for motor feedback. The motor has a continuous torque at standstill of 0.15 Nm and uses a plain shaft without a shaft seal or holding brake.
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Product Description:
The MDD021A-N-100-N2G-032FC0 belongs to the MDD Synchronous Motors series from Bosch Rexroth Indramat and is supplied as a servo motor for digital drive controllers. It is intended for light-duty axes in industrial automation lines. Its design supports high rotational speeds and precise electronic commutation for positioning tasks that require rapid, controlled movement.
The motor delivers a continuous standstill torque of 0.15 Nm, so closed-loop drives can hold position without causing a thermal overload during dwell periods. Its nominal shaft speed reaches 10,000 rpm, allowing fast indexing in pick-and-place or spindle applications. A centering diameter of 32 mm seats the frame accurately in mounting fixtures, and all power and feedback conductors exit on side A to keep cabling on one face of the machine. The installed interface is a connecting cable with a coupling unit, simplifying the connection to the drive system. Mechanical holding torque is not provided because the unit is supplied without a blocking brake; external clamping is therefore needed when a vertical axis must remain stationary without motor power. Motor size 021 and length code A create a short stack that minimizes inertia for responsive acceleration. The housing is a standard nonventilated enclosure that relies on heat transfer through the motor body and mounting surface.
A plain shaft transmits torque directly to clamping couplings or miniature gearboxes. The shaft has no seal, so the installation area must remain free from coolant spray and oil mist that could reach the bearing area. Position data are returned through resolver feedback, enabling sinusoidal commutation and accurate low-speed control without requiring an absolute encoder. The rotor uses standard balancing to keep vibration within suitable limits at the rated speed. The motor has no side B shaft end, reducing the axial space required behind the housing. This single-ended arrangement also leaves the rear of the motor unobstructed when it is installed in a compact machine assembly.
