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R911390600 (MSK071C-0300-FN-S1-UG0-NNNN)

MSK IndraDyn S Synchronous Motors

  In-Stock, Ships 3-5 Days
Expedited Lead Times on Select Parts
1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
The R911390600 (MSK071C-0300-FN-S1-UG0-NNNN) is a Bosch Rexroth MSK series synchronous servomotor designed for use in industrial automation systems such as machine tools, metal-forming machinery, and robotics. This model features a liquid cooling system, a maximum speed of 5,000 RPM, rotor inertia of 0.00173 kg·m², and a maximum current rating of 32.9 A. It provides a continuous current at standstill of 8.5 A (100 K), continuous torque at standstill of 14.0 Nm, and maximum torque up to 44.0 Nm with a winding inductivity of 10,900 mH. The motor is equipped with a single-turn optical encoder using the Hiperface interface, offering 128 signal periods for precision feedback. Encoder connection is rotatable up to 240°, and mechanical integration is achieved via a plain shaft with shaft sealing ring. The unit is intended for operation at ambient temperatures up to 40°C.

Technical Specifications

Cooling Method
Liquid Cooling

Maximum Speed
5000 RPM

Rotor Inertia
0.00173 kgm2

Maximum Current Rating
32.9A

Encoder Type
Single-Turn Encoder with Hiperface Interface

Encoder Measurement Method
Optical

Encoder System Accuracy
±80 Angular Seconds

Shaft Type
Plain Shaft with Sealing Ring

Noise Level
Noiseless Operation

Ideal Ambient Temperature
Up to 40oC

What advantages does liquid cooling provide on the MSK071C-0300-FN-S1-UG0-NNNN in duty cycles with high thermal load?

The liquid circuits remove copper/iron losses directly from the stator jacket for stabilizing winding temperature and allowing higher continuous torque density. It is valuable for cyclic start-stop processes or extended continuous operation where air cooling would impose derating.

How does the optical singleturn Hiperface encoder in MSK071C-0300-FN-S1-UG0-NNNN aid precision motion?

The singleturn optical system provides precise absolute position within one revolution and low interpolation error for enabling tight velocity and position loops. Its Hiperface ensures robust parameter readout and commissioning with Rexroth drives.

Why specify a plain shaft on MSK071C-0300-FN-S1-UG0-NNNN, and what couplings suit it?

The plain (cylindrical) shaft supports backlash-free, frictional couplings (e.g., clamping or bellows) for low runout and torsional stiffness. It simplifies alignment in precision axes versus keyed interfaces, especially in servo applications.

What is the role of the 240° rotatable power/encoder connector on MSK071C-0300-FN-S1-UG0-NNNN?

The swiveling connector eases cable routing in confined frames that minimizes bend-radius stress, and improves serviceability. Installers can orient terminations to avoid drag chains or interference with guarding.

How should I interpret 14.0 Nm continuous torque at standstill (100 K) for MSK071C-0300-FN-S1-UG0-NNNN?

It’s the continuous stall torque with a 100 K permissible winding temperature rise under specified cooling for guiding safe thermal sizing.

MSK071C0300FNS1UG0NNNN

MSK071C 0300 FN S1 UG0 NNNN

MSK-071C-0300-FN-S1-UG0-NNNN

MSK71C-0300-FN-S1-UG0-NNNN

Internal Product Review

Bosch Rexroth Indramat develops MSK071C-0300-FN-S1-UG0-NNNN as a servomotor that relies on liquid cooling method and possess a plain shaft design for easy mechanical coupling. It uses an optical singleturn Hiperface encoder for feedback through a 240° rotatable plug. This unit is built to deliver a 100K condition torque of 14.0 Nm and 44.0 Nm peak torque by utilizing up to 32.9 A of current to suit packaging, metal forming and printing automation tasks.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MSK071C-0300-FN-S1-UG0-NNNN.
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