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R911287781 (MKD112B-058-GG1-AN)

MKD Synchronous Motors

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The R911287781 (MKD112B-058-GG1-AN) is a Rexroth Indramat AC servo motor featuring a 192 mm flange, motor size 112, and frame length B. It operates with a rated speed of 3000 rpm, provides a continuous standstill torque of 28.0 Nm, and achieves a rated torque of 30 Nm with a maximum torque output of 102 Nm. The unit is equipped with a plain shaft, shaft seal, and a 22 Nm electrically released holding brake. Feedback is supplied via a resolver (RSF) system, supporting relative position detection. The voltage constant is specified at 76 V/krpm and the torque constant is 0.77 Nm/A at 20°C. The motor is housed in an IP65 enclosure for protection against dust and water jets and supports operation within 0 to 45°C, with storage limits from -20 to 80°C. Rotor inertia measures 0.038 kgm² and the cooling method is radial. Connection is made via an output connector on the A-side.

Technical Specifications

Frame Size
B

Flange Size
192 mm

Operational Reliability
High

Characteristic Speed
4000 rpm

Peak Current
183 A

Holding Brake
20 Nm (Electrically Released)

Communication System
RSF

Shaft Type
Plain Shaft

Connector Port Location
A-side

Max Torque
102 Nm

Torque Constant (at 20°C)
0.77 Nm/A

Voltage Constant (at 20°C)
70 V/1000 rpm

Standstill Torque
28 Nm

Protection Class
IP 65

Winding Resistance (at 20°C)
0.17 Ohm

Thermal Time Constant
90 mins

Operating Ambient Temperature
0 - 45°C

Storage Ambient Temperature
-20 - 80°C

Common Misspellings

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the MKD112B-058-GG1-AN.
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