Description
Bosch Rexroth MSK040C-0600-NN-M1-UG1-NNNN | Synchronous Servo Motor, Category ID
Architect’s Product Breakdown
The MSK040C-0600-NN-M1-UG1-NNNN servo motor acts as a heavy-duty rotary actuator within multi-axis motion control topologies. Driven by Bosch Rexroth IndraDrive controllers, this 40-frame C-stack variant provides expanded continuous and peak torque capabilities compared to smaller frame models, handling heavy inertial loads in automated machinery, material handling systems, and metal-forming equipment. Its optical multi-turn absolute encoder maintains precise position tracking through power cycles without requiring mechanical homing routines.
Integrating this drive-motor combination requires verifying firmware compatibility and re-tuning current and velocity loop parameters to match the thermal and rotational inertia profiles of the 40-series frame. The “UG1” designation specifies an integrated shaft sealing ring, which provides crucial defense against fluid ingress in machining centers and washdown-adjacent automated cells.
Engineering teams must prioritize thermal management and shield grounding. Operating enclosed motors without adequate convective airflow or leaving power cable shields unbonded can cause thermal derating or electromagnetic interference across control channels.

MSK040C-0600-NN-M1-UG1-NNNN
Key Technical Specifications
| Parameter | Specification |
| Manufacturer | Bosch Rexroth (Indramat) |
| Model Number | MSK040C-0600-NN-M1-UG1-NNNN |
| Motor Family | MSK Synchronous Servo Motor |
| Size / Length | Frame Size 040, Length C |
| Winding Code | 0600 |
| Cooling Type | Natural convection (Natural cooling) |
| Feedback Type | Optical encoder, multi-turn absolute |
| Shaft Design | Plain shaft with integrated shaft sealing ring (UG1) |
| Holding Brake | Without integrated holding brake |
| Protection Category | IP65 |
Field Engineer’s Pitfall Guide
- Feedback Connector Misalignment: Forcing the circular feedback plug without aligning the internal keyway can bend delicate pins, triggering immediate absolute encoder communication faults on the drive.
- Neglecting Lip Seal Maintenance: While the UG1 integrated shaft seal protects against fluid migration, failing to monitor the seal for dry-running wear can cause premature friction breakdown in aggressive lubricant environments.
- Inadequate Power Cable Shield Grounding: Failing to secure the motor power cable shield 360 degrees to the drive chassis clamp introduces high-frequency noise that disrupts nearby low-voltage instrumentation loops.
QA & Testing SOP
- Visual & Origin Inspection: Verify factory seals, inspect housing coatings and shaft seal surfaces for transit damage, and check connector pin alignment against production documentation.
- Live Test Environment: Couple the motor to a calibrated IndraDrive test bench to verify smooth commutation, holding current stability, and velocity tracking under load.
- Diagnostics & Handshake Tests: Execute absolute encoder initialization routines, verify multi-turn position count registers, and perform a megohmmeter insulation resistance test on the windings.
- Preservation & Packaging: Install protective plastic caps over the shaft and connectors, wrap the unit in antistatic shielding material, and secure it inside heavy-duty industrial foam.
Technical FAQ
Does the MSK040C-0600-NN-M1-UG1-NNNN include an integrated holding brake?
No. The “-NN-” designation indicates that this specific part configuration is supplied without an internal holding brake.
What is the difference between a UG0 and a UG1 shaft designation?
The UG0 designation represents a plain shaft without an integrated sealing ring, whereas UG1 includes an integrated shaft sealing ring for enhanced protection against fluid ingress.
Can I operate this motor using a third-party AC servo drive?
No. MSK motors use proprietary digital encoder communication protocols that require a compatible Bosch Rexroth IndraDrive controller for proper commutation and operation.
What software is required to configure the connected drive parameters?
Drive configuration, parameterization, and tuning are performed using the Bosch Rexroth IndraWorks engineering software platform.


