MSK071D-0300-NN-S2-UG1-RNNN
MSK IndraDyn S Synchronous Motors
The Bosch Rexroth Indramat MSK071D-0300-NN-S2-UG1-RNNN is a high-performance synchronous servomotor in the MSK IndraDyn S Synchronous Motors series, delivering robust torque and precision control. This digital servo motor features 0300 winding code and is designed for Cooling: Natural convection, ensuring reliable heat dissipation under continuous operation. The integrated Encoder Interface: EnDat2.1 supports high-speed, high-accuracy feedback, while the Encoder Resolution: 2048 signal periods optical singleturn encoder maintains precise position control. With a Rated Speed: 3800 RPM and a compact design, the MSK071D-0300-NN-S2-UG1-RNNN meets demanding requirements for machine tool, robotics and automated assembly applications.
The technical specifications of the MSK071D-0300-NN-S2-UG1-RNNN reflect its advanced design. It achieves a Torque Constant: 2.12 Nm/A and a Voltage Constant: 134 V/1000 RPM at 20 °C, with a Winding Resistance: 1.26 Ohm and Winding Inductivity: 10.7 mH to optimize current and torque characteristics. The motor’s Leakage Capacitance: 7.2 nF ensures stable high-frequency performance, while its Pole Pairs: 4 configuration supports smooth operation and high dynamic response. The Thermal Time Constant: 54 min provides accurate thermal monitoring, and the combined Weight: 19.6 kg (motor plus holding brake) balances structural stiffness and inertia. Housing design features Increased concentricity and low run-out to minimize vibration and ensure long service life.
Operational performance is further enhanced by high continuous and peak torque ratings. Under natural convection cooling at 60 K overtemperature, the motor delivers Continuous Torque at Standstill 60 K: 17.5 Nm at Continuous Current at Standstill 60 K: 9.1 A, rising to 26.3 Nm and 13.5 A with surface cooling. For 100 K overtemperature, it sustains 20.0 Nm at 10.7 A continuously. The unit’s Maximum Torque: 66.0 Nm and Maximum Current: 40.5 A ratings accommodate rapid acceleration and deceleration cycles. An electrically‐released holding brake with Holding Brake Torque: 23 Nm provides fail‐safe positioning in vertical or inclined axes.
System integration is seamless thanks to rotatable connectors and robust encoder interface. The Encoder Connector: Rotatable, 240° simplifies wiring and maintenance in tight spaces. The plain shaft design with seal ensures compatibility with standard couplings and offers effective environmental protection. As part of the Bosch Rexroth Indramat ecosystem, the MSK071D-0300-NN-S2-UG1-RNNN is ideal for CNC machining centers, pick-and-place robots, and high-speed packaging machinery where precise motion control, high torque density, and reliability are critical.
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
D
Motor Size
071
Holding Brake
With holding brake, electrically-released
Holding Brake Torque
23 Nm
Design
Increased concentricity
Product Type
IndraDyn S Synchronous Servomotor
Shaft Type
Plain shaft
Winding Code
0300
Continuous Current at Standstill 100 K
10.7 A
Continuous Torque at Standstill 100 K
20.0 Nm
Maximum Current
40.5 A
Maximum Torque
66.0 Nm
Winding Inductivity
10,700 mH
Frequently Asked Questions
How does natural convection cooling affect motor performance in continuous use?
The motor uses natural airflow to manage heat which avoids the need for external fans. The design ensures stable torque delivery but may limit output compared to forced cooling.
Why is high encoder resolution important for industrial automation systems?
The encoder provides precise feedback which improves accuracy in positioning tasks. The high resolution minimizes error and supports smooth motion in demanding automation.
What is the role of winding inductivity in dynamic response of the motor?
The winding inductivity helps smooth current flow during rapid changes in load. The stable current profile supports fast acceleration without instability.
How does the holding brake support safety in vertical or inclined applications?
The holding brake secures the axis when power is removed. The feature prevents unintended movement and ensures reliable positioning under gravity loads.
What are the installation benefits of a plain shaft with a sealing system?
The plain shaft allows compatibility with standard couplings. The integrated seal protects against dust and fluids extending motor service life.
Common Misspellings
MSK071D0300NNS2UG1RNNN
MSK071D 0300 NN S2 UG1 RNNN
MSK-071D-0300-NN-S2-UG1-RNNN
MSK71D-0300-NN-S2-UG1-RNNN
Internal Product Review
The MSK071D-0300-NN-S2-UG1-RNNN servomotor from Rexroth Indramat delivers a continuous torque of 20 Nm and peak torque of 66 Nm. It has an EnDat2.1 singleturn encoder with 2048 signal periods and a holding brake with 23 Nm torque. Ideal for industries such as robotics and automation it ensures precise motion control and reliability in demanding applications.
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