MDD021B-N-100-N2K-032FA0
Bosch Rexroth Indramat manufactures the MDD021B-N-100-N2K-032FA0 as part of the MDD Synchronous Motors series. This compact servo motor is intended for digital drive controllers where high rotational speed and accurate position feedback are required for pick-and-place arms, small gantries, or spindle functions. By integrating the feedback device and electrical connections into the housing, the unit simplifies installation in tightly packed automation cells. That arrangement leaves more room around the motor for tooling, cable routing, and closely spaced mechanical components. It is also suitable for applications that demand quick starts and frequent reversals without a large motor body.
The motor uses a centering pilot of 32 mm to locate precisely against mounting fixtures, and all power and signal conductors exit on side A through a sealed connector. At standstill, it sustains 0.30 Nm of continuous torque, allowing low-inertia axes to hold position under controller command without additional gearing. Under rated operating conditions, the rotor can reach 10000 rpm, enabling direct coupling to high-speed tooling or small-diameter feed screws. This combination supports fast response on compact axes while keeping the drivetrain simple. Standard dynamic balancing helps maintain smooth operation, and the integrated feedback device supports stable speed and position control during rapid motion.
The motor has frame length B and frame size 021, placing it in a compact housing suited to small machine axes. Position data is returned through resolver feedback, which is resistant to electrical noise and mechanical shock in industrial environments. A single shaft extension is provided, and the plain shaft is ground for press-fit couplings without keyways that could increase runout. The simple shaft form also supports clamping hubs and compact couplings used on light mechanical loads. The motor is supplied without a blocking brake and without a shaft seal, and the housing can achieve IP65 protection when the mating connectors and gaskets are installed.
