MDD071A-N-040-N2T-095GB1
The MDD071A-N-040-N2T-095GB1 is a synchronous servo motor produced by Bosch Rexroth Indramat for the MDD Synchronous Motors series. It is intended for direct coupling with digital drive controllers, where it converts regulated current into controlled rotary motion for industrial axes. The unit’s A-length housing and 071 frame size allow compact installation on packaging stations, pick-and-place heads, and light machining spindles that demand fast dynamic response without using excessive space. This layout is commonly used on servo-driven axes where short motor length helps preserve the machine envelope and limit moving mass.
This motor delivers 2.2 Nm of continuous standstill torque, enabling it to hold static loads without overheating while the shaft remains at zero speed. During normal operation, it reaches a rated velocity of 4000 rpm, so high-speed cycles can be executed without mechanical gearing. A centering diameter of 95 mm positions the stator rigidly against the machine flange, which helps limit runout and vibration. Position and velocity are reported through digital servo feedback (DSF), allowing the drive to maintain precise closed-loop regulation during acceleration and steady-state operation. The feedback channel also provides immediate rotor information for stable low-speed control and accurate positioning. All power and signal conductors exit on side B of the housing, which can simplify cable routing when several motors are mounted in line.
For axis holding when power is removed, the integrated brake applies 3.0 Nm of holding torque to help prevent back-driving. This arrangement is useful on vertical or back-drivable axes that must stay in place during a power loss. A plain shaft is supplied, allowing the use of couplings or pulleys without keyway constraints, and a shaft seal helps keep coolant or airborne particles out of the bearing area. The integrated multiturn absolute encoder retains position information over power cycles, so the axis can restart without a homing sequence after a stop. Connector-based wiring keeps the electrical interface compact, and standard rotor balancing supports smooth rotation during normal-duty operation.
