MSK071C-0300-NN-S2-UG0-RNNN
MSK IndraDyn S Synchronous Motors
The Bosch Rexroth Indramat MSK071C-0300-NN-S2-UG0-RNNN is a high-performance synchronous servomotor from the MSK IndraDyn S Synchronous Motors series engineered for precision motion control in industrial automation. It delivers a continuous torque of 14.0 Nm and operates at a continuous current of 8.5 A, providing smooth and reliable performance under varying load conditions. The motor is capable of producing a maximum torque of 44.0 Nm and can withstand a peak current draw of 32.9 A for short durations. With a winding inductivity of 10,900 mH, this unit offers stable electrical characteristics that support high-precision control algorithms. Its plain shaft design and compact dimensions make it suitable for direct coupling to driven loads without additional couplings or gearheads.
This IndraDyn S synchronous servomotor features natural convection cooling, eliminating the need for external fans or water-cooling circuits, and reducing maintenance requirements. The optical encoder employs a singleturn EnDat2.1 interface with 2048 signal periods resolution, connected via a rotatable, 240° encoder connector, ensuring unrestricted conduit routing. The motor length designation is C with a size code of 071, and it is built with an increased concentricity design for minimized radial runout and vibration. It carries the winding code 0300 and is delivered without holding brake to simplify mechanical integration when no braking torque is required. The IndraDyn S Synchronous Servomotor product type is optimized for modular automation architectures.
Under continuous operation at ambient temperatures up to 100 K, the MSK071C-0300-NN-S2-UG0-RNNN sustains its 14.0 Nm torque output at standstill, drawing 8.5 A of current. It reaches a maximum rotational speed of 5000 rpm, allowing rapid acceleration and deceleration profiles. The motor weighs 13.9 kg and generates less than 75 dB of acoustic noise, facilitating installation in noise-sensitive environments. Its low inertia rotor, with a moment of inertia of 0.00173 kg·m², further enhances dynamic response for high-speed indexing and precise positioning tasks.
Integration of the MSK071C-0300-NN-S2-UG0-RNNN is straightforward in Rexroth IndraDrive controls, leveraging built-in EnDat2.1 feedback and natural convection cooling to minimize system complexity. The plain output shaft and absence of a holding brake allow direct coupling in conveyor modules, robotics joints, packaging machines, and pick-and-place systems. With its robust design and precise encoder feedback, this motor is ideally suited for applications demanding repeatable accuracy, high torque density, and reliable long-term operation.
Technical Specifications
Cooling
Natural convection
Encoder Connector
Rotatable, 240°
Encoder Interface
EnDat2.1
Encoder Resolution
2048 signal periods
Encoder Technology
Optical
Encoder Turn Type
Singleturn
Motor Length
C
Motor Size
071
Holding Brake
Without holding brake
Design
Increased concentricity
Product Type
IndraDyn S Synchronous Servomotor
Shaft Type
Plain shaft
Winding Code
0300
Continuous Current at Standstill 100 K
8.5 A
Continuous Torque at Standstill 100 K
14.0 Nm
Maximum Current
32.9 A
Maximum Torque
44.0 Nm
Winding Inductivity
10,900 mH
Frequently Asked Questions
How should I interpret 14.0 Nm continuous at standstill (100 K) and 8.5 A on MSK071C-0300-NN-S2-UG0-RNNN?
It indicates sustained feed or holding torque with thermal reference (winding over ambient) of 100 K for guiding continuous-duty sizing. Its paired current clarifies drive sizing and copper-loss estimates for worst-case stall conditions.
Why choose natural-convection cooling on MSK071C-0300-NN-S2-UG0-RNNN?
The fan-less convection reduces parts count and maintenance while keeping thermal paths predictable for duty computations. It also offer retrofit blowers or liquid cooling when application duty cycles demand greater continuous thermal throughput.
How does the EnDat 2.1 singleturn encoder (S2, 2048 periods) on MSK071C-0300-NN-S2-UG0-RNNN enhance positioning?
It provides absolute position on startup and fine incremental signals per revolution to improve loop stability and eliminate homing routines. Its implementations in MSK motors specify system accuracy around ±20 arcsec depending on variant.
What does the 10,900 mH winding inductivity mean for MSK071C-0300-NN-S2-UG0-RNNN control performance?
Its higher inductance increases electrical time constant for smoothing current ripple and easing current-loop tuning at moderate bandwidths. It complements high-resolution feedback for stable servo behavior under variable mechanical loads.
How do the 240° rotatable power/feedback connectors help on MSK071C-0300-NN-S2-UG0-RNNN?
They permit cable exit to be oriented away from obstacles to simplify routing in compact or moving installations. It reduces strain-relief complexity and helps maintain bending radii on robot wrists or gantries.
Common Misspellings
MSK071C0300NNS2UG0RNNN
MSK071C 0300 NN S2 UG0 RNNN
MSK-071C-0300-NN-S2-UG0-RNNN
MSK71C-0300-NN-S2-UG0-RNNN
Internal Product Review
The Indramat’s servo motor MSK071C-0300-NN-S2-UG0-RNNN is designed to generate 14.0 Nm of steady torque and operates at an angular speed of 5000 rpm. It comes with an EnDat 2.1 singleturn optical feedback system and possess a plain design of shaft. This motor has a specified winding inductance of 10900 mH for aiding stable control at 8.5 A. It is used in robotics joints, metal-forming axes and conveyor modules applications.
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