R911311875 (MSK050C-0300-NN-M2-UG1-RNNN)

Name: R911311875 (MSK050C-0300-NN-M2-UG1-RNNN)
Brand: Indramat Motors
SKU: MSK050C-0300-NN-M2-UG1-RNNN
Price: 792.00 USD
Availability: InStock

MSK IndraDyn S Synchronous Motors

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The Bosch Rexroth MPN R911311875 (MSK050C-0300-NN-M2-UG1-RNNN) is an IndraDyn S synchronous servomotor designed for high torque density applications, providing a maximum torque of 15.0 Nm, continuous torque at standstill of 5.5 Nm, and continuous current at standstill of 3.4 A (100 K). It features natural convection cooling, supplemented optionally by fans, and is equipped with an optical multiturn absolute encoder (EnDat 2.1, 2048 signal periods), and a rotatable connector. The unit includes a plain shaft, increased concentricity, and an electrically released holding brake with a holding torque of 6 Nm. The motor is rated for a maximum speed of 4300 RPM, operates at a maximum current of 12.4 A, and is housed in an IP65 enclosure suitable for installations near machinery. Dimensions correspond to motor size 050 and length C; weight is 4 kg. Operating temperature range is 0–40°C, and sound pressure level is less than 75 dB.

Technical Specifications

Type
MSK Servo Motor

Torque Density
High

Maximum Torque
631 Nm

Applications
Servo Drive Motors, Rotary Main Motors

Maximum Motor Speed
4300 RPM

Continuous Torque
3 Nm

Continuous Current
1.8 Amps

Maximum Motor Torque
9 Nm

Maximum Current
7.2 Amps

Encoder Interface
EnDat 2.1

Signal Periods
2047

Brake Principle
Electrical Release

Holding Torque of Brake
6 Nm

Sound Pressure
<75 dB

Ambient Temperature
0 - 40 degrees Celsius

Pole Pairs
4

Motor Housing Protection Class
IP65

Increased Concentricity Run Out (DIN 42955)
Yes

Main Shaft
Smooth with Sealing Ring

Cooling
Natural convection

Weight
4 Kilograms

Frequently Asked Questions

How does the MSK050C-0300-NN-M2-UG1-RNNN integrate with Rexroth’s automation systems?

It’s designed to pair with the HCS series drive controllers. This ensures seamless motion control, quick commissioning, and closed-loop system compatibility.

What feedback resolution can I expect when using this model in high-precision positioning tasks?

It features an EnDat2.1 encoder with 2048 signal periods. This provides fine-grained position feedback for demanding interpolation and servo accuracy.

Can this motor handle sudden torque demands in indexing or short-burst cycles?

It delivers a maximum torque of 15.0 Nm under peak load. This suits applications requiring fast acceleration without oversizing the motor.

How does the MSK050C-0300-NN-M2-UG1-RNNN maintain mechanical load stability during power-off events?

It includes a 6 Nm electrically-released holding brake. This allows safe vertical-axis retention or emergency stop load securing.

Is this motor suitable for silent, maintenance-free enclosures without active cooling?

Natural convection cooling eliminates the need for fans. It supports low-noise operation in sealed or passive environments.

Common Misspellings

MSK050C0300NNM2UG1RNNN

MSK050C 0300 NN M2 UG1 RNNN

MSK-050C-0300-NN-M2-UG1-RNNN

MSK50C-0300-NN-M2-UG1-RNNN

Internal Product Review

The MSK050C-0300-NN-M2-UG1-RNNN is a servo motor from Bosch Rexroth Indramat with a 6 Nm holding brake. It supports up to 15.0 Nm peak torque, features 2048 signal periods, and uses an EnDat2.1 encoder for precision. The efficient operation of the motor is maintained through natural convection cooling.