Compact New Synchronous Servo Motor Rexroth R911316327 MSK030B-0900-NN-M1-UG0-NSNN For High-Speed Motion Control

The REXROTH R911316327 MSK030B-0900-NN-M1-UG0-NSNN is a compact synchronous servo motor from the Rexroth IndraDyn S MSK motor family. It is designed for applications where a machine builder needs high-speed motion, accurate feedback, low rotor inertia, and reliable operation in a small installation space. Compared with larger MSK motor frames, the MSK030B is a lightweight servo motor suitable for small axes, auxiliary machine movements, compact pick-and-place devices, inspection equipment, and automation modules where space and dynamic response are more important than high continuous torque.

This model belongs to the MSK030B-0900 configuration. According to available MSK030B technical data, the MSK030B-0900-NN version has a continuous standstill torque of about 0.4 Nm, continuous standstill current of about 1.7 A at 100 K, maximum torque of about 1.8 Nm, maximum current of about 6.8 A, and an operating protection class of IP65. The listed motor mass is about 1.3 kg, while the value in brackets for brake-related versions is higher. Because the requested type code ends in UG0, it indicates no holding brake, so approx. 1.3 kg is the more suitable product weight for this configuration.

Product Overview Table

The MSK030B-0900-NN-M1-UG0-NSNN is not intended to replace a high-torque servo motor used on a heavy feed axis. Its value is in compactness, speed, and controllability. The motor can be used where the load is light, the duty cycle is frequent, and the movement must be repeatable. Typical examples include small conveyor indexing axes, labeling machines, laboratory automation, electronic assembly machines, compact gantry modules, and machine vision positioning tables.

Technical Specification Table

The technical profile of this motor shows a clear design direction. The continuous torque is moderate, but the maximum speed is high. This means the motor is well suited for fast, light-load movement rather than slow, heavy-load drive tasks. In many compact automation machines, a motor like this can reduce mechanical size, lower moving mass, and improve acceleration response. The low mass also makes it easier to integrate into moving assemblies where every kilogram affects dynamic performance.

Model Code Explanation

The full type code should always be used when sourcing this motor. A short description such as “MSK030B servo motor” is not enough for accurate replacement. Differences in encoder type, brake configuration, shaft design, and connector layout can affect mechanical fit, drive setup, and machine commissioning. For example, a similar motor with UG1 may include a holding brake, while this UG0 version does not. That difference matters if the motor is installed on a vertical or gravity-loaded axis.

Weight and Packing Information

The estimated product weight of approx. 1.3 kg makes this motor relatively easy to handle compared with larger MSK070, MSK100, or MSK101 servo motors. However, it should still be treated as a precision component. The shaft, encoder section, connector area, and sealing surfaces should not be exposed to impact. For export shipping, the motor should be packed in a foam-supported carton or small wooden case if the customer requires stronger protection. The shaft end should be covered to avoid deformation or surface damage during transport.

Application Areas

The motor is useful in machines that require clean and repeatable servo control. Its multiturn absolute encoder can help the control system retain position information across power cycles, depending on drive and system configuration. This is valuable in machines where homing time should be reduced, or where the axis must return to a known position after shutdown.

Functional Advantages

The absence of a holding brake can be an advantage in horizontal or balanced axes because it reduces motor mass and simplifies the mechanical system. However, it is not suitable for every installation. If the motor is used on a vertical axis, lifting device, or load that can fall when power is removed, an external brake or a different motor version with a holding brake should be considered.

Installation and Replacement Notes

Before replacing an existing servo motor with R911316327 MSK030B-0900-NN-M1-UG0-NSNN, the complete machine configuration should be checked. The original motor nameplate, drive parameters, encoder type, connector direction, shaft coupling, and brake requirement must match the replacement unit. If the installed machine originally used a motor with a brake, this UG0 version may not be a safe direct substitute.

For used, refurbished, or surplus stock, the motor should be tested before delivery. Recommended checks include insulation resistance, encoder feedback, bearing noise, shaft condition, connector condition, and housing integrity. If the motor has been removed from a working machine, it is still necessary to verify that the encoder and winding insulation are healthy before resale or reinstallation.

SEO Product Summary

The REXROTH R911316327 MSK030B-0900-NN-M1-UG0-NSNN synchronous servo motor is a compact IndraDyn S MSK series motor designed for high-speed precision motion control. With order number R911316327, winding code 0900, natural convection cooling, M1 multiturn absolute encoder, plain shaft design, no holding brake, IP65 protection, and an estimated weight of approx. 1.3 kg, it is suitable for compact automation machines, packaging equipment, electronic assembly systems, testing equipment, light handling devices, and small servo positioning axes. Its small frame size, high maximum speed, low mass, and accurate feedback capability make it a practical choice for machine builders and maintenance teams that need a reliable compact servo motor for industrial automation applications.