Description
- Rexroth MSK050C-0300-NN-M1-UG1-NNNN | Original Drive Motor
Unboxing & Physical Snapshot
- Model & Brand: Bosch Rexroth IndraDyn S MSK050C-0300-NN-M1-UG1-NNNN
- Product Type: Permanent magnet synchronous servo motor from the MSK series designed for IndraDrive servo systems. It is used in precision motion applications including machine tools, robotics, packaging systems, and industrial automation equipment.
- Approximate Physical Dimensions (W × H × D):
- Motor frame size: MSK050
- Approximate body dimensions: 140 × 140 × 260 mm (configuration dependent)
- Estimated Shipping Weight:
- Motor weight: approximately 8–10 kg
- Typical packaged shipping weight: 11–14 kg
- What’s in the Box:
- Rexroth MSK050C servo motor
- Motor shaft protection cover (when supplied)
- Connector interfaces for power and feedback
- Mounting hardware (configuration dependent)
- Anti-static protective packaging
- Documentation when supplied
Product Introduction
The Rexroth MSK050C-0300-NN-M1-UG1-NNNN is built for integration into IndraDrive motion control systems where precise torque generation, positioning accuracy, and repeatable machine movement are required. The motor connects directly with servo drives through dedicated power and feedback interfaces, creating a controlled motion chain between the controller, drive amplifier, and mechanical load (—which is critical for high-cycle manufacturing equipment where alignment errors create production losses).
This motor configuration must be verified by the complete ordering code. Every character defines hardware details such as winding, feedback system, shaft design, holding brake option, and connector arrangement. Check the nameplate. Check the encoder type. Do not replace by frame size alone. Mechanical compatibility does not guarantee electrical compatibility.
Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bosch Rexroth |
| Product Family | IndraDyn S MSK Series |
| Model | MSK050C-0300-NN-M1-UG1-NNNN |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Frame Size | MSK050 |
| Cooling Method | Natural convection |
| Rated Speed | 3000 rpm |
| Feedback System | Optical encoder (M1 option) |
| Encoder Type | Single-turn absolute encoder with Hiperface interface (configuration dependent) |
| Brake Option | No holding brake (NN option) |
| Shaft Design | Smooth shaft without keyway (configuration dependent) |
| Mounting | Flange mounted servo motor |
| Protection Rating | IP65 motor housing (typical MSK configuration) |
| Insulation Class | Class F |
| Operating Temperature | 0°C to +40°C typical |
| Storage Temperature | -20°C to +80°C typical |
| Power Connection | Motor power connector |
| Feedback Connection | Encoder feedback connector |
| Rotor Inertia | Configuration dependent |
| Rated Torque | Configuration dependent |
| Maximum Torque | Configuration dependent |
| Weight | Approximately 8–10 kg |

- Rexroth MSK050C-0300-NN-M1-UG1-NNNN
? Global Compliance & Industry Certifications
Expected regulatory approvals for the Bosch Rexroth -0300-NN-M1-UG1-NNNN include:
- CE Mark
- Indicates compliance with applicable European EMC and machinery-related requirements when integrated into a complete drive system.
- UL/cUL Recognition
- May apply for approved motor-drive combinations used in North American industrial installations.
- ATEX / IECEx
- Not normally included for standard MSK servo motors. Hazardous-area use requires specially certified motor variants and system approval.
- Marine Approvals (DNV GL)
- Applicable only for specific certified marine automation applications.
Servo motor certification is important because incorrect motor selection can affect thermal limits, insulation safety, and machine guarding requirements.
Verify specific lot certifications with OEM.
? Long-Term Storage & Asset Preservation Guide
Store the motor in a dry environment with humidity below 60% RH. Moisture can affect insulation resistance and may create corrosion on the shaft surface and connector contacts.
Rotate the motor shaft periodically during extended storage. This helps prevent bearing lubricant separation and localized bearing surface issues.
Keep the original packaging and protect the encoder connector and power connector openings. Do not remove protective caps until installation (—small contamination particles can affect connector reliability in precision motion systems).
Inspect insulation resistance, shaft condition, and nameplate data before commissioning after long-term storage.
Physical Installation Prerequisites
- Install the only with a compatible Bosch Rexroth IndraDrive controller.
- Confirm motor code parameters match the drive configuration.
- Verify power voltage, current rating, and feedback interface before startup.
- Mount on a rigid machine flange to prevent alignment errors.
- Ensure adequate airflow around the motor body.
- Maintain clearance around the motor housing for heat dissipation.
- Confirm protective earth connection before energizing.
- Inspect encoder and power connectors for contamination.
- Perform motor identification and commissioning procedures after installation.
Buyer’s FAQ (Logistics & Compliance Focus)
Q: What HS Tariff Code is commonly used for the Rexroth servo motor?
A: Servo motors are commonly classified under HS 8501 categories for electric motors. The exact tariff number depends on motor specifications and destination-country customs requirements.
Q: Does Country of Origin (COO) affect importing this servo motor?
A: Yes. COO affects customs valuation, duty treatment, and traceability. Ensure the commercial invoice, packing list, and certificate of origin contain matching information.
Q: Is shipping insurance recommended for the motor?
A: Recommended. Servo motors contain precision bearings, encoder assemblies, and machined mechanical surfaces. Impact damage may not be visible externally but can affect positioning accuracy.
Q: Does the include the latest firmware pre-loaded?
A: The motor itself does not contain the motion control firmware. Motor parameters are stored in the drive/controller configuration. Verify the IndraDrive parameter set and motor identification data before commissioning.



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