Description
- Rexroth MKD071B-061-KG1-KN | Original Indramat Motor
Unboxing & Physical Snapshot
- Brand & Model: Bosch Rexroth Indramat MKD071B-061-KG1-KN
- Product Family: MKD Synchronous Servo Motor Series.
- Product Type: Permanent magnet synchronous servo motor with resolver feedback and integrated encoder system.
- Primary Function: Converts controlled electrical drive output into precise rotary mechanical motion for industrial positioning applications.
- Application Areas: CNC machinery, robotics, packaging equipment, printing systems, and automated production machinery.
- Motor Construction: Permanent magnet synchronous design with integrated holding brake.
- Approximate Physical Dimensions (W × H × D): Estimated 140 × 140 × 300 mm (based on MKD071 frame size and 115 mm flange configuration).
- Estimated Shipping Weight: Approximately 8.8 kg.
- Mechanical Features:
- 115 mm mounting flange
- Plain shaft with shaft seal
- Resolver feedback interface
- Integrated encoder
- Holding brake
- Metal motor housing
- Side-mounted electrical connection
- Protection Rating: IP65.
- Cooling Method: Natural convection cooling; surface cooling options depend on installation configuration.
- Handling Requirements:
- Protect the motor shaft from impact.
- Keep electrical connectors covered during storage.
- Avoid lifting the motor by cable connections.
- What’s in the Box:
- Rexroth MKD071B-061-KG1-KN servo motor
- Protective packaging
- Shaft protection cover when supplied
- Inspection documentation if included
Product Introduction
The Rexroth MKD071B-061-KG1-KN is designed for industrial motion systems where accurate torque delivery and position control are required. The motor mounts directly into machine assemblies through its flange interface and works with compatible Rexroth drive controllers to provide closed-loop servo operation (which is critical for synchronized axes and repeatable mechanical positioning).
This motor should be managed as a precision electromechanical asset. Inspect the shaft seal, flange surface, brake operation, connector housing, and nameplate before installation. Check the storage date. Bearings, insulation materials, and internal brake components can degrade during extended storage even when the external housing remains clean.
Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bosch Rexroth Indramat |
| Model Number | MKD071B-061-KG1-KN |
| Product Family | MKD Synchronous Servo Motor |
| Motor Type | Permanent magnet synchronous motor |
| Feedback System | Resolver feedback with integrated encoder |
| Rated Speed | Approx. 4000–5000 rpm |
| Maximum Speed | 6000 rpm |
| Continuous Standstill Torque | 8.0 Nm |
| Surface Cooling Standstill Torque | 12.0 Nm |
| Rated Torque | Approx. 5.3 Nm |
| Continuous Current | 11.2 A (natural cooling) / 16.8 A (surface cooling) |
| Rated Current | Approx. 5.5 A |
| Holding Brake Torque | 5 Nm |
| Flange Size | 115 mm |
| Centering Diameter | 95 mm |
| Shaft Type | Plain shaft with seal |
| Protection Rating | IP65 |
| Insulation Class | Class F |
| Weight | 8.8 kg |
| Cooling Method | Natural convection / optional surface cooling |
| Operating Temperature | Approx. 0°C to +40°C |

Rexroth MKD071B-061-KG1-KN
Global Compliance & Industry Certifications
Expected regulatory approvals and compliance considerations for the Rexroth MKD071B-061-KG1-KN include:
- CE Mark — applies to applicable EMC and machinery installation requirements when integrated into a compliant machine system.
- UL/cUL Recognition — may apply depending on the motor-drive combination and final equipment certification.
- RoHS Compliance — applies to relevant production revisions.
- ATEX/IECEx Considerations — this motor is not inherently hazardous-area certified; classified-area use requires a complete approved system design.
- Marine Approvals (DNV GL) — require separate verification for marine or offshore applications.
The IP65 enclosure rating is important because it helps protect the motor against dust ingress and water exposure when installed according to the specified mechanical sealing requirements.
Verify specific lot certifications with OEM.
Long-Term Storage & Asset Preservation Guide
- Store the horizontally in a dry, vibration-free area. Rexroth servo motors contain precision bearings and shaft sealing components that should not remain exposed to uncontrolled environments.
- Maintain warehouse humidity below 60% RH. Moisture can affect connector contacts, brake components, and insulation resistance.
- Protect the shaft surface with clean wrapping or a corrosion-prevention method approved for electrical machinery storage.
- Keep the original packaging whenever possible. The flange face, resolver connector, and shaft seal require protection from impact.
- Before commissioning, perform insulation resistance checks and verify brake function after long storage periods.
Physical Installation Prerequisites
- Install the motor on a rigid machine structure using the correct flange mounting pattern.
- Verify coupling alignment before connecting the motor shaft to the mechanical load.
- Use the correct mounting hardware and tightening torque specified for the machine design.
- Ensure sufficient airflow around the motor housing for heat dissipation.
- Leave clearance around the connector area for maintenance access.
- Connect protective grounding according to site electrical standards.
- Verify encoder/resolver wiring before energizing.
- Confirm compatibility with the Rexroth drive controller before startup.
Buyer’s FAQ (Logistics & Compliance Focus)
Q: What HS Tariff Code is commonly used for Rexroth ?
A: Servo motors are commonly classified under HS 8501 for electric motors. The final tariff code depends on motor specifications and the importing country’s customs interpretation.
Q: Why does Country of Origin (COO) matter for this Rexroth servo motor?
A: COO affects customs clearance, duty calculation, trade documentation, and equipment traceability. The COO should match the commercial invoice, packing list, and certificate of origin when required.
Q: Should shipping insurance be arranged for this motor?
A: Recommended. The motor contains precision bearings, feedback components, and a shaft assembly. Shock loading or moisture exposure during transport can create failures that are difficult to detect visually.
Q: Does the include the latest firmware pre-loaded?
A: The motor itself does not operate with application firmware like a controller module. Encoder-related identification data may be stored internally, while motion parameters and control software are managed by the connected Rexroth drive system.



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