Rexroth MKD071B-061-KG1-KN

Core Technical Specifications

• Frame Size: 071, Length Code B
• Continuous Standstill Torque: 8.0 Nm
• Rated Torque: 5.3 Nm
• Rated Power: 3.4 kW
• Rated Operating Speed: 4500 rpm; Max Transient Speed: 6000 rpm
• Rotor Moment of Inertia: 8.7×10⁻⁴ kg·m²
• Feedback Code KG1: Resolver + multi-turn absolute encoder composite feedback
• Winding Code 061: Medium torque wide speed range winding design
• Flange Size: 115 mm, Centering Diameter 95 mm
• Shaft Configuration: Plain solid shaft with integrated shaft sealing ring
• Holding Brake: Not equipped (KN suffix indicates brake-less design)
• Protection Grade: IP65
• Cooling Mode: Natural convection surface heat dissipation
• Motor Net Weight: 8.8 kg
• Thermal Time Constant: 45 min
• Insulation Class: F
• Operating Ambient Temperature: 0°C ~ +40°C
• Max Installation Altitude: 1000 m above sea level

Function Features

1. Balanced torque-inertia ratio, both high acceleration dynamic response and stable medium-load continuous operation capacity
2. Composite resolver + absolute encoder dual feedback, realize high-speed closed-loop control and power-off position memory
3. Brake-less lightweight design, reduce rotor inertia for horizontal transmission axes without load falling risk
4. IP65 full sealing structure, resist workshop dust, cutting fluid and water splash pollution
5. Side B dual aviation connector layout, separate power and encoder wiring to reduce signal interference
6. Built-in KTY winding temperature sensor, overheat automatic protection linkage with Rexroth IndraDrive drives
7. Standard 115mm IEC flange, wide compatibility with Rexroth medium series planetary and helical reducers