MDD025C-N-100-N2G-040GA1
The MDD025C-N-100-N2G-040GA1 is a synchronous motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it serves as the rotary actuator in precision automation lines, translating controlled current from a servo inverter into accurate shaft rotation. The design goal is compactness; the 025 size frame, the C length, and the standard housing let the unit sit close to moving masses so that short motor-to-load linkages can be maintained and dynamic accuracy improved. This also helps preserve responsiveness in tightly packed servo assemblies.
The drive section is tuned for a nominal speed of 10000 rpm, a figure that supports fast positioning cycles without requiring an external gearbox. A continuous standstill torque of 0.90 Nm keeps light loads stationary when the axis is held by the current loop alone. Feedback is supplied through resolver feedback, giving rotor position information that is tolerant of temperature variation and electrical noise. Power and signal wiring exit on side A through a keyed connector, simplifying cabinet layouts that use prefabricated cable sets. Mechanical runout is controlled by standard balancing, and the enclosure follows the standard housing design so vibration transmitted to the bearings remains within typical servo limits.
The holding arrangement includes a blocking brake that delivers 1.0 Nm of static torque; it secures the shaft during emergency stops or power-loss events. The centering pilot measures 40 mm, which provides the alignment surface against mounting flanges. Within the MDD family, this unit carries the length code C and the frame code 025, so stroke and load calculations can be matched across the series. The motor uses a plain shaft without a side B extension, and it is protected by a shaft seal to limit lubricant egress and particle ingress. The shaft end follows the standard pattern used on MDD motors.
