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R911373620 (MSK050B-0450-NN-M3-UG1-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 R911373620 (MSK050B-0450-NN-M3-UG1-NNNN) is a synchronous servomotor from Rexroth Indramat, designated as an IndraDyn S series model in a 050 motor size with B length. It provides continuous standstill torque of 3.4 Nm at 3.2 A (100 K), with a maximum torque output of 9.0 Nm at 11.2 A. The motor achieves a peak speed of 6000 RPM. It utilizes a multiturn absolute capacitive encoder with a Hiperface interface, featuring 16 signal periods and a rotatable 240° connector. The unit is equipped with an electrically-released holding brake rated at 6 Nm and features a plain shaft. Protection is ensured with an IP65 housing, and cooling is accomplished by natural convection.

Technical Specifications

Product Type
Industrial Synchronous Motor

Design
Compact

Torque Density
High

Precision Level
High

Required Current for Continuous Operation
3.2 amperes

Output Torque at Continuous Operation
3.4 Newton-meters

Protection Class
IP65

Operational Efficiency
95 percent

Maximum Current
11.2 Amperes

Peak Speed at Maximum Current
6000 revolutions per minute

Output Torque at Maximum Current
9.0 Newton meters

Motor Length
203 millimeters

Motor Thickness
98 millimeters

Motor Weight
4.9 kilograms

Heat Generation
Minimal

Heat Control
Natural Convection

How does natural convection cooling limit continuous operation in the MSK050B-0450-NN-M3-UG1-NNNN motor?

The MSK050B-0450-NN-M3-UG1-NNNN motor dissipates heat via its surface to ambient air, without forced airflow, so continuous high torque runs may require derating. In heavy duty cycles, built-in convection may restrict allowable duty cycles to avoid overheating.

Why is the plain shaft design used in this motor rather than a flanged or hollow shaft?

A plain shaft offers simplicity, lower inertia, and easier coupling via pulleys or shafts, ideal where a hollow-drilled or flanged configuration isn’t needed. It also allows users design flexibility in coupling methods.

How does the 6 Nm holding brake inthis servomotor influence system safety?

The electrically released brake engages when power is lost, holding the load in place and preventing drift. This is critical in vertical or safety-sensitive axes to avoid unintended motion.

Why is the maximum current spec (11.2 A) important for dynamic motion in MSK050B-0450-NN-M3-UG1-NNNN motor?

The 11.2 A peak current of MSK050B-0450-NN-M3-UG1-NNNN motor enables the motor to generate the full 9.0 Nm torque during acceleration phases. It defines how much boost the drive can supply beyond continuous rating for transient loads.

How do vibration or shaft load limits affect the MSK050B-0450-NN-M3-UG1-NNNN motor?

The MSK050B-0450-NN-M3-UG1-NNNN motor defines permissible radial and axial loads to avoid bearing damage. Exceeding these limits may degrade bearing life or reduce accuracy under load.

MSK050B0450NNM3UG1NNNN

MSK050B 0450 NN M3 UG1 NNNN

MSK-050B-0450-NN-M3-UG1-NNNN

MSK50B-0450-NN-M3-UG1-NNNN

Internal Product Review

The IndraDyn S Synchronous Servomotor MSK050B-0450-NN-M3-UG1-NNNN from Bosch Rexroth features natural convection cooling, a capacitive multiturn absolute encoder with Hiperface, and a 6 Nm electrically released holding brake. It delivers 3.4 Nm continuous torque at standstill and up to 9.0 Nm maximum torque with a plain shaft design. This motor is ideal for robotics, packaging equipment, and automation systems requiring accurate and consistent motion control.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MSK050B-0450-NN-M3-UG1-NNNN.
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