380603420 XCMG GR2605 motor grader copper sleeve

380603420 XCMG GR2605 motor grader copper sleeve

The 380603420 copper bushing is a core wear-resistant component in the articulation and rotating parts of engineering machinery. Made of copper alloy, it is used in shaft-hole mating areas to reduce friction, provide support, and buffer, suitable for heavy-load, low-speed rotation conditions.

Core Functions and Roles

Friction Reduction and Support: As a wear-resistant bushing between the shaft and the base, it reduces the coefficient of friction during shaft rotation, reduces wear between the shaft and the mounting hole, and extends service life.

Load Transmission: It bears radial loads and impact loads at the articulation points, evenly distributes stress, prevents deformation of the mounting hole, and ensures structural stability.

Positioning and Buffering: During equipment movement, it absorbs vibration and impact, alleviates stress concentration at the articulation points, and reduces abnormal noise during component operation.

Connection and Fit: It cooperates with pins, drive shafts, and other components to achieve precise positioning of rotating parts, ensuring flexible rotation of moving parts in the equipment.

Key Technical Parameters

Model: 380603420
Name: Copper Bushing (Wear-Resistant Bushing)
Material: Tin Bronze / Aluminum Bronze (High Wear-Resistant Copper Alloy, Suitable for Heavy-Duty, Low-Lubrication or No-Lubrication Conditions)
Suitable Scenarios: Excavators, Loaders, Construction Machinery Hinges, Drive Shafts, Pin Mating Holes
Operating Temperature: -40℃～+200℃
Core Features: Excellent wear resistance, impact resistance, good self-lubrication, strong load-bearing capacity, suitable for heavy-duty low-speed conditions

Common Faults and Troubleshooting

Fault Symptoms: Wear, cracking, and detachment of the inner wall of the copper bushing; increased clearance; abnormal noise during equipment operation; rotational jamming; component misalignment.

Troubleshooting Points: After stopping the machine, check the integrity and wear level of the copper bushing; check the shaft hole clearance; combine with abnormal noise during equipment operation to determine the wear condition; if abnormal, immediately stop use and replace.

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