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

MDD Synchronous Motors

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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

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1620 Old Apex Road
Cary, NC 27513, USA

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Indramat USA 1 Year Warranty

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Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

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

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.