New Synchronous Servo Motor Rexroth R911316330 MSK030B-0900-NN-M1-UP1-NSNN For Motion Control Applications

The REXROTH R911316330 MSK030B-0900-NN-M1-UP1-NSNN is a compact synchronous servo motor from the Rexroth IndraDyn S MSK series, designed for precision motion control applications where high dynamic response, stable positioning, and reliable feedback are required in a limited installation space. This motor belongs to the MSK030 frame size and uses a high-speed 0900 winding configuration, making it suitable for small automation axes, compact handling systems, packaging machines, laboratory equipment, semiconductor-related mechanisms, dosing units, and other machines that require accurate servo-controlled movement.

This product combines a small motor body with a high-performance feedback system and a practical mechanical configuration. The complete type code MSK030B-0900-NN-M1-UP1-NSNN indicates a motor size 030, length B, 0900 winding, natural convection cooling, multiturn encoder feedback, shaft with keyway and shaft sealing arrangement, and a holding brake version. The order number R911316330 is important for procurement, spare parts identification, and replacement matching, because Rexroth MSK motors can have very similar model codes with different encoder, shaft, brake, and connection options.

Basic Product Information

The approximate weight of 1.6 kg makes this motor practical for compact mechanical assemblies. It can be installed in machine structures where space and moving mass are both important. In small servo axes, reducing the motor weight helps improve mechanical response and reduces the load on brackets, slides, rotary tables, and end-of-arm assemblies. For export packing and shipping estimation, users should distinguish between the bare motor weight and the final packed weight. The packed weight will normally be higher after adding protective materials, carton, foam, and possible wooden reinforcement.

Model Code Interpretation

The model code is especially important when replacing a motor on an existing machine. A motor with the same frame size but a different encoder type, shaft style, or brake option may not be a direct replacement. For example, a similar MSK030B motor without brake may have a different order number and may not meet the holding requirements of a vertical or inclined axis. Likewise, a different encoder option may require drive parameter changes or may not match the existing Rexroth drive configuration.

Product Overview

The REXROTH R911316330 MSK030B-0900-NN-M1-UP1-NSNN is intended for machine builders and maintenance users who need a small but accurate servo motor. It is not a general-purpose induction motor. It is a feedback-controlled synchronous servo motor used together with a compatible servo drive, typically in systems where position, speed, and torque must be controlled precisely.

Its compact size makes it useful in applications such as indexing devices, miniature conveyor modules, pick-and-place mechanisms, electronic assembly machines, small rotary axes, packaging feeders, labeling equipment, inspection stations, and test benches. In these applications, the motor does not only provide rotation; it provides controlled motion according to drive commands, encoder feedback, and machine control logic.

The multiturn encoder is an important feature for applications that require absolute position reference over multiple revolutions. In many automation systems, this reduces the need for repeated homing after power cycling, depending on the drive and control configuration. For production machines, this can reduce restart time and help maintain repeatable position control after shutdown or emergency stop events.

Technical Characteristics

The holding brake should be understood correctly. It is mainly used to hold the motor shaft when the drive is not actively controlling the motor. It is not intended to be used as a dynamic service brake for repeated stopping of moving loads. In vertical axes, lifting mechanisms, or inclined installations, the brake helps prevent unintended movement when power is removed or when the axis is disabled. However, the full machine design must still consider load torque, safety factor, brake wear, drive settings, and emergency stop behavior.

Application Areas

This motor is suitable for installations where motion accuracy and repeatability are more important than large power output. Because the MSK030B is a small-frame servo motor, it is normally selected for light-duty or medium-light-duty axes rather than heavy mechanical transmission systems. For heavier load applications, users should check torque, speed, inertia ratio, brake capacity, mounting dimensions, and drive compatibility before confirming the replacement.

Procurement and Replacement Notes

When purchasing R911316330 MSK030B-0900-NN-M1-UP1-NSNN, the buyer should confirm the full model code instead of relying only on the MSK030B series name. The order number R911316330 should be used together with the complete motor model to reduce the risk of receiving a similar but incompatible version. Important details to check include encoder type, brake option, shaft design, connector orientation, and condition of the motor.

For replacement use, it is also recommended to record the information from the original motor nameplate. The nameplate can confirm the exact type code, material number, serial number, voltage-related data, and manufacturing information. If the motor is being replaced after failure, the user should also inspect the drive, motor cable, feedback cable, brake circuit, mechanical coupling, and load condition. A servo motor failure may be caused by mechanical overload, cable damage, drive fault, contamination, bearing wear, or incorrect brake operation.

Advantages for Industrial Users

The REXROTH R911316330 MSK030B-0900-NN-M1-UP1-NSNN is a practical choice for precision automation systems requiring a compact servo motor with encoder feedback and holding brake functionality. Its combination of small size, approximately 1.6 kg weight, multiturn feedback, and servo-grade construction makes it suitable for machine axes where accurate movement, repeatable positioning, and reliable integration are required.

Before final purchase, users should verify the motor against the existing machine documentation, drive parameters, cable type, and mechanical interface. For international trade, the product description should include both the order number R911316330 and the full model MSK030B-0900-NN-M1-UP1-NSNN, because these two identifiers are the safest way to avoid confusion with similar MSK030B variants.