MDD041B-N-100-N2G-050PA1
The MDD041B-N-100-N2G-050PA1 is a compact synchronous servo unit manufactured by Bosch Rexroth Indramat for the MDD Synchronous Motors series. It is intended for use with digital drive controllers where rapid acceleration and accurate speed tracking are required on small axes. The motor uses resolver feedback so the controller receives real-time rotor position data for closed-loop operation across its speed range. Its compact format is useful where machine sections leave little room for larger servo packages.
The frame size is 041, the smallest housing in the series, and a 50 mm centering pilot aligns the flange accurately on the machine plate. Rated speed reaches 10000 min⁻¹, allowing the motor to support very fast positioning cycles when paired with a suitable controller. During stall conditions, the winding can deliver 1.35 Nm continuously, which reflects its steady-load thermal capability. A spring-applied brake provides 1.2 Nm of holding torque to keep the shaft from drifting after power is removed. Position information is carried by resolver feedback rather than an optical encoder, which helps the motor tolerate vibration and contamination. High speed and continuous stall torque give the drive a wider usable operating window in short-cycle applications.
Power and feedback plugs face Side A, which can simplify cable routing when the motor is installed in confined machine spaces. That layout also keeps the connection area concentrated on one side of the housing. The single shaft end uses a keyway for positive torque transmission to pulleys or couplings. The shaft is supplied with shaft seal, which helps retain lubricant and protect the bearing area from contamination. Standard balancing limits residual vibration, and the housing style, connector arrangement, and B motor length support use in compact low-inertia assemblies where stable running and predictable installation geometry are important.
