r80 Swing Motor Gearbox Metallic Gray Excavator Final Drive Excavator Parts

Here’s a fast, informative look at what this solution does and how it behaves. In this video, we break down the R80 Swing Motor Gearbox (31N1-10140) used in excavators, showing its internal structure, how it reduces speed and increases torque for smooth 360° rotation, and common failure symptoms like unusual noise, oil leaks, and overheating. You'll see real-world insights into planetary gear operation, brake mechanisms, and maintenance tips to help extend equipment life.