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R911256749 (MDD115A-N-030-N2L-130GA1)

MDD Synchronous Motors

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The Bosch Rexroth R911256749 (MDD115A-N-030-N2L-130GA1) is an AC servo motor designed with a 1.9 kg holding brake and rated to IP65 for resistance to dust and water ingress. It accepts a 0.75 mm² power supply connection on the A-side housing and has a mass of 33 kg. The motor features a winding inductance of 2 mH, standard housing for both natural and surface cooling, class N dynamic balancing, and a centering diameter of 130 mm. It delivers a continuous standstill torque of 28 Nm at a constant current of 42.4 A, with a torque constant of 87.1 Nm at 3000 rpm and a peak current of 190.9 A. The model is equipped with a thermal time constant of 90 minutes, a winding temperature sensor, and digital servo feedback. The shaft is plain with a shaft seal, connection direction on side A, standard shaft end, and nominal speed of 3000 min⁻¹.

Technical Specifications

Product Type
AC Servo Motor

Holding Brake
1.9 kg

IP Rating
IP 65

Output Shaft Type
Plain with sealing ring

Power Connection Wire Diameter
0.75 mm2

Weight
33 kg

Winding Inductance
2 mH

Balance Class
N

Cooling Type
Natural and Surface

Centred Diameter
130 mm

Finish Thickness
40 micron

Constant Torque at Standstill
28 Nm

Constant Current at Standstill
42.4 A

Feedback Type
Digital Servo

Winding Resistance
0.13 ohms

Thermal Time Constant
90 minutes

Maximum Theoretical Torque
87.1 Nm at 3000 RPM

Maximum Current
190.9 A

Insulation Class
F

Torque Constant
0.66 Nm/A

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1620 Old Apex Road
Cary, NC 27513, USA

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1620 Old Apex Road
Cary, NC 27513
USA

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Toll Free: 1-888-551-3082
International: 1-919-443-0207

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