R911389730 (MSK071D-0450-NN-M1-UG2-NSNN)

Name: R911389730 (MSK071D-0450-NN-M1-UG2-NSNN)
Brand: Indramat Motors
SKU: MSK071D-0450-NN-M1-UG2-NSNN
Price: 249.00 USD
Availability: InStock

MSK IndraDyn S Synchronous Motors

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Phone:
1-888-551-3082

Email:
sales@indramat-usa.com

The Indramat MPN R911389730 (MSK071D-0450-NN-M1-UG2-NSNN) is a synchronous servomotor from the IndraDyn S series, designed for use as a rotary main or servo drive in precision applications such as machine tools and processing equipment. It features a 071 frame size, length D, plain shaft, and utilizes natural convection for cooling. The motor is equipped with an electrically released 30 Nm holding brake and a multiturn absolute optical encoder with 128 signal periods and Hiperface interface. Electrical characteristics include a torque constant of 1.25 Nm/A, winding resistance of 0.45 Ohms, winding inductivity of 3,200 mH, and maximum current of 69.3 A. The continuous current and torque at standstill (100 K) are 17.6 A and 20.0 Nm, respectively, with a maximum torque output of 66.0 Nm. The unit offers IP65 protection, a rotatable encoder connector (240°), and a chemically resistant sealing ring, and is compatible with GTM and GTE gearbox series.

Technical Specifications

Motor Frame Size
071

Motor Length
D

Holding Brake
30Nm

Cooling System
Natural Convection

Torque Constant at 20°C
1.25Nm/A

Winding Resistance
0.45 Ohms

Winding Inductivity
3.2 mH

Maximum Current
69.3A

Output Shaft
Plain Type

Sealing Ring
Resistant to Oil and Chemicals

Bearing Lifetime
30,000 Hours

Maximum Torque
66Nm

Protection Rating
IP 65

Motor Encoder
Multiturn Absolute Optical Encode

Frequently Asked Questions

How does natural convection cooling affect installation of this motor?

The cooling method requires open airflow around the motor housing. The installer must avoid enclosing the motor in tight cabinets without ventilation.

What is the impact of using optical encoder technology in precision applications?

The encoder provides high resolution feedback for accurate positioning. The result is smoother motion control and minimized positioning error.

Can the holding brake be used as a dynamic stop during motion?

The brake is designed for holding at standstill rather than for repeated dynamic stopping. Using it for braking under load can reduce its service life.

How does continuous torque at standstill influence system design?

The motor can sustain rated torque without rotation under thermal limits. The designer must ensure proper duty cycle to prevent overheating in long holding tasks.

What advantage does a rotatable 240° connector offer during wiring?

The connector angle adjustment simplifies cable routing in constrained machine layouts. The result is reduced strain on cables and easier servicing.

Common Misspellings

MSK071D0450NNM1UG2NSNN

MSK071D 0450 NN M1 UG2 NSNN

MSK-071D-0450-NN-M1-UG2-NSNN

MSK71D-0450-NN-M1-UG2-NSNN

Internal Product Review

The MSK071D-0450-NN-M1-UG2-NSNN from Rexroth has optical encoder technology with a 240° rotatable connector and natural convection cooling. Delivering 66 Nm peak torque and 20 Nm continuous torque, it includes a 30 Nm holding brake. This motor supports automation tasks in packaging systems, printing machinery and semiconductor equipment.