Bosch Rexroth MSK030C-0900-NN-M1-UG0-NNNN IndraDyn S Servo Motor

Bosch Rexroth MSK030C-0900-NN-M1-UG0-NNNN IndraDyn S Servo Motor

  • Manufacturer: Bosch Rexroth
  • Product Family: IndraDyn S MSK synchronous servo motors
  • Full Model: MSK030C-0900-NN-M1-UG0-NNNN
  • Order Number: R911308683
  • Product Type: Permanent-magnet synchronous servo motor
  • Encoder: Optical multiturn absolute Hiperface encoder, 128 signal periods
  • Cooling: Natural convection
  • Shaft: Smooth shaft with shaft seal ring
  • Holding Brake: Not fitted
  • Protection Rating: IP65 for the motor housing, according to published product documentation
  • Key Performance Figures: 0.8 Nm continuous standstill torque at a 60 K temperature rise; 4.0 Nm maximum torque; 9000 rpm maximum speed.
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Category: SKU: Bosch MSK030C-0900-NN-M1-UG0-NNNN

Description

Product Introduction

In compact automated machinery, a servo motor must provide controlled acceleration, repeatable positioning, and reliable feedback without occupying excessive installation space. The Bosch Rexroth MSK030C-0900-NN-M1-UG0-NNNN is an IndraDyn S synchronous servo motor designed for precision motion-control applications. Its multiturn absolute Hiperface encoder provides position feedback, while natural-convection cooling avoids the need for a separate motor cooling fan under specified operating conditions.

The Bosch Rexroth MSK030C-0900-NN-M1-UG0-NNNN, order number R911308683, uses a smooth shaft with a sealing ring and has no holding brake. These details matter when replacing a motor in an existing machine because shaft coupling, encoder compatibility, and the drive’s motor parameters must match. Verify the complete type code and the connected drive configuration before commissioning.

 

Key Technical Specifications

Parameter Specification
Product Model MSK030C-0900-NN-M1-UG0-NNNN
Order Number R911308683
Manufacturer Bosch Rexroth
Product Family IndraDyn S MSK
Product Type Synchronous servo motor
Motor Size 030
Motor Length C
Winding Code 0900
Cooling Natural convection
Encoder Type Optical, multiturn absolute
Encoder Interface Hiperface
Encoder Signal Periods 128
Electrical Connector Rotatable connector, 240°
Shaft Design Smooth shaft with shaft seal ring
Holding Brake None
Continuous Standstill Torque at 60 K 0.8 Nm
Continuous Standstill Torque at 100 K 0.9 Nm
Maximum Torque 4.0 Nm
Continuous Standstill Current at 60 K 1.5 A RMS
Continuous Standstill Current at 100 K 1.7 A RMS
Maximum Current 6.8 A RMS
Torque Constant at 20°C 0.58 Nm/A
Maximum Speed 9000 rpm
Protection Rating IP65
Basic Motor Weight Approximately 1.9 kg
Ambient Temperature 0–40°C reported; confirm installation limits
Communication Protocol Hiperface encoder interface; not a standalone fieldbus controller

Specification note: Torque and current values depend on the specified thermal conditions. Maximum speed is not a guarantee that every load can operate at 9000 rpm continuously. Use the applicable Bosch Rexroth motor and drive documentation to check torque-speed curves, current limits, and thermal requirements.

MSK030C-0900-NN-M1-UG0-NNNN

Application Scenarios and Maintenance Concerns

  • Precision automation: Supports controlled rotary motion in compact machinery where accurate position feedback and repeatable movement are required.
  • Packaging and assembly equipment: Can be used in servo-driven mechanisms that need frequent acceleration, deceleration, and position changes.
  • Machine-tool auxiliary axes: May suit compact feed or positioning mechanisms when the torque-speed envelope and mechanical arrangement are appropriate.
  • Legacy servo replacement: The complete type code and R911308683 order number help identify the intended motor configuration for an existing installation.

Field note: If the replacement motor moves in the wrong direction, reports an encoder fault, or overheats, check the drive’s motor data, feedback configuration, wiring, and load mechanics before changing drive parameters. A motor with the correct frame size may still be incompatible if its encoder or winding differs.

 

Related Products

MSK030C-0900-NN-M1-UG1-NNNN — R911308684

Closely related version with an electrically released 1 Nm holding brake. Unlike the UG0 version, it includes a brake, so the drive and machine wiring must support that feature.

MSK040C-0600-NN-M1-UG0-NNNN — R911306060

A larger MSK040 motor variant. Its frame, winding, and performance characteristics differ; it is not a direct substitute without a machine-level engineering review.

MSK050C-0600-NN-M1-UG0-NNNN — R911298354

A larger motor in the same product family. Check mounting dimensions, inertia, rated current, and torque requirements before considering it for an upgrade.

 

Engineer’s Guide: Three Checks Before Replacement

  1. Match the complete type code. Confirm MSK030C-0900-NN-M1-UG0-NNNN and order number R911308683. Pay particular attention to the M1 encoder, smooth shaft, and absence of a holding brake.
  2. Verify drive and feedback compatibility. Confirm the servo drive supports the motor’s electrical characteristics and Hiperface multiturn absolute encoder. Check the required motor identification data and feedback configuration before enabling the axis.
  3. Inspect the mechanical installation. Measure the shaft and coupling, confirm mounting dimensions, inspect the shaft seal, and check the cable connector’s orientation. Ensure the application stays within the motor’s permitted speed, torque, and thermal limits.

 

Frequently Asked Questions

Q1: What is the Bosch Rexroth MSK030C-0900-NN-M1-?

It is an IndraDyn S synchronous servo motor for industrial motion-control applications, with an optical multiturn absolute Hiperface encoder.

Q2: What is its Bosch Rexroth order number?

The associated order number is R911308683. Confirm both the order number and full type code when sourcing a replacement.

Q3: Does this version include a holding brake?

No. The UG0 code identifies the version without a holding brake. The related UG1 version includes an electrically released 1 Nm brake.

Q4: What is the maximum rated speed?

Published technical data lists a maximum speed of 9000 rpm. The allowable operating speed under load must be checked against the motor’s torque-speed data and the application requirements.

Q5: What is the motor’s protection rating?

The published motor specification identifies IP65 protection. Confirm the applicable installation requirements, including connector sealing and cable condition, before relying on this rating in service.

Q6: Can an MSK030 motor with a different encoder replace it?

Not automatically. The encoder type and interface must be supported by the connected drive. A different encoder variant can require different drive configuration and commissioning procedures.

Q7: What should buyers check before purchasing?

Confirm the complete type code and R911308683 order number, inspect the nameplate and shaft, check the connector and encoder condition, and request the unit’s condition classification and available test records. For used motors, also ask whether encoder feedback and winding checks were performed.

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