The Bosch Rexroth Indramat MSK050B-0450-NN-S1-UG0-NNNN is a high-performance synchronous servomotor within the MSK IndraDyn S Synchronous Motors series designed for precise motion control in compact industrial systems. This motor delivers substantial torque despite its modest dimensions, making it well suited for applications requiring high dynamic response and space constraints. Constructed by Bosch Rexroth Indramat, the MSK050B-0450-NN-S1-UG0-NNNN features a robust, standard design and a plain shaft configuration to support radial loads directly at the output interface. Although it is supplied without a holding brake, the motor’s optimized electromagnetic topology provides consistent torque output throughout a broad speed range. Integration of a singleturn optical encoder ensures accurate feedback without external components, maintaining system simplicity and reliability.
The detailed technical architecture of the MSK050B-0450-NN-S1-UG0-NNNN includes Cooling: Natural convection for passive thermal management under continuous operation. Feedback is managed through an Encoder Interface: Hiperface protocol via a Rotatable, 240° encoder connector, ensuring flexible cable routing and minimal installation constraints. The encoder employs Encoder Technology: Optical sensing with a Encoder Resolution: 128 signal periods, supporting precise position detection across the full mechanical travel. The motor’s winding is identified by Winding Code: 0450 and delivered in a Motor Size: 050 frame with a Motor Length: B designation, enabling clear compatibility checks against drive converter families. The standard design specification and Product Type: IndraDyn S Synchronous Servomotor designation align this part with Bosch Rexroth’s established performance tiers for synchronous servo drives.
Operational performance is characterized by a Continuous Current at Standstill 100 K: 3.2 A rating, delivering a Continuous Torque at Standstill 100 K: 3.4 Nm without forced cooling. Peak demands are accommodated by a Maximum Current: 11.2 A capability, translating to a Maximum Torque: 9.0 Nm output at optimal flux conditions. The motor’s high inductance of Winding Inductivity: 33,600 mH contributes to smooth current transitions and reduced torque ripple during dynamic acceleration. Passive cooling under natural convection ensures stable operation up to rated thermal limits without auxiliary fans or liquid cooling loops. The plain shaft permits direct coupling to gearboxes or load interfaces, preserving high torsional stiffness and minimizing backlash in motion control assemblies.
System integration is streamlined through native compatibility with Bosch Rexroth IndraDrive and IndraDyn S servo controllers, leveraging the Hiperface encoder interface for synchronized multi-axis coordination. The compact footprint and high torque density of the MSK050B-0450-NN-S1-UG0-NNNN support deployment in robotics, packaging machinery, precision assembly lines, and other applications requiring tight servo loop control. Its standardized mounting dimensions and electrical connections facilitate rapid system commissioning and reduce engineering validation times. As part of the MSK IndraDyn S series, this synchronous servo motor offers a cost-effective solution for manufacturers seeking reliable performance and seamless integration into advanced automation platforms.
Cooling
Natural convection
Encoder Connector
Rotatable, 240°
Encoder Interface
Hiperface
Encoder Resolution
128 signal periods
Encoder Technology
Optical
Encoder Turn Type
Singleturn
Motor Length
B
Motor Size
050
Holding Brake
Without holding brake
Design
Standard
Product Type
IndraDyn S Synchronous Servomotor
Shaft Type
Plain shaft
Winding Code
0450
Continuous Current at Standstill 100 K
3.2 A
Continuous Torque at Standstill 100 K
3.4 Nm
Maximum Current
11.2 A
Maximum Torque
9.0 Nm
Winding Inductivity
33,600 mH