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R911277883 (MDD115D-N-020-N2L-180GA0)

MDD Synchronous Motors

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1 Year Warranty Included
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The Bosch Rexroth R911277883 (MDD115D-N-020-N2L-180GA0) is an AC servo motor engineered for digital drive controllers, delivering continuous torque of 57.0 Nm at a standstill with a continuous current of 77 A. The unit features a standard housing, motor size 115 with length code D, and a centering diameter of 180 mm. It reaches a nominal speed of 2000 min⁻¹ and incorporates a plain shaft with shaft seal. The rotor employs permanent magnets, resulting in low inertia (moment of inertia: 271 x 10⁻⁴ kg·m²), and is controlled via digital servo feedback for precise speed and position monitoring. The motor has a torque constant of 0.74 Nm/A, a thermal time constant of 90 minutes, and a total mass of 60 kg. Connection is by connector on side A, with standard balancing and no holding brake.

Technical Specifications

Continuous Torque
57 Nm

Continued Current Usage
77 A

Balancing Class
N

Thermal Time Constant
90 minutes

Shaft Type
Plain

Holding Brakes
No

Power Connector Position
A Side

Insulation Class
F

Rotor Material
Iron Oxide or Rare-earth Magnetic Elements

Weight
60 kilograms

Digital Servo Feedback
Yes

Torque Constant
0.74 Nm/A

Moment of Inertia
271 x 10-4 kgm2

Winding Resistance
0.06 ohms

Centering Diameter
180 mm

Maximum Speed
2000 revolutions per minute

Current Draw
346.5 amps

Frequently Asked Questions

Common Misspellings

Internal Product Review

The MDD115D-N-020-N2L-180GA0 synchronous servo motor from Bosch Rexroth Indramat pairs a sealed plain shaft, DSF encoder and 57 Nm stall torque at 2000 min⁻¹ with a Ø180 mm pilot. It integrates cleanly with digital drives. This unit is typically deployed in packaging, machine tools, printing, textiles and robotics applications. It comes in an IP65 frame for protections against dust and water ingress.

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
product repair We offer a repair service for the MDD115D-N-020-N2L-180GA0.
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