MDD071A-N-040-N2S-095PL1
The MDD071A-N-040-N2S-095PL1 is a synchronous servo motor built by Bosch Rexroth Indramat within the MDD Synchronous Motors series. It is intended for use with digital drive controllers, converting commanded current into controlled rotary motion for axes that require precise velocity and position control in automated machinery such as pick-and-place stations, packaging frames, and light machining centers. Rotor angle data is returned by digital servo feedback (DSF), enabling the drive to close high-precision current and velocity loops. This arrangement supports stable motion during frequent starts, stops, and positioning moves.
Mechanically, the motor uses a centering pilot of 95 mm for accurate alignment to gearboxes or mounting flanges, while the standard balancing grade helps keep vibration within normal limits. It can supply a continuous stall torque of 2.2 Nm, which indicates how much load it can hold without thermal overload while locked. Under rated excitation, the rotor reaches a nominal speed of 4000 rpm, allowing rapid indexing on compact automation axes. Size code 071 sets the overall stator diameter and associated thermal surface, and all electrical leads exit on the housing's left side through a single circular connector with a left-side connection direction. This connector keeps the cable interface compact at the motor housing.
For position holding when power is removed, an internal brake generates 3.0 Nm of static torque, so additional clamps are not required on vertical axes. A shaft seal protects the bearings by limiting lubricant migration and blocking dust entry, which supports the standard housing protection. Power is transmitted through a keyed shaft, and the integrated keyway helps provide repeatable coupling to pulleys or couplings while reducing the chance of slip under peak loads. The motor also uses an A-length stator and a single-ended shaft, which help keep the package compact.
