Applications of Graphite Copper Self-Lubricating Bearings in Construction, Mining, and Loading Machinery

In industries such as construction, mining, and material loading, machines are often exposed to heavy loads, low speeds, dusty environments, and high impact conditions. Traditional lubrication methods require frequent maintenance, and lubricants can easily be contaminated by dust, leading to premature bearing failures.

Graphite copper self-lubricating bearings have become the preferred solution thanks to their wear resistance, self-lubrication, high-temperature performance, and maintenance-free operation.

This article highlights the most common application positions of graphite copper bushings in construction machinery, mining equipment, and loading machines.

Applications in Construction Machinery

1. Bulldozers, Excavators, Scrapers

   • Bearing positions: Connecting rod bearings, power bushings

   • Typical usage: Bulldozer track rollers, excavator bucket linkages, and swing mechanisms

   • Benefits: Handle high loads and frequent oscillation; self-lubricating properties reduce downtime and maintenance needs.

2. Cranes

   • Bearing positions: Boom rotation joints, pulley system power bushings

   • Benefits: Ensure smooth operation under heavy loads and low speeds, extending the service life of structural joints.

3. Concrete Mixers

   • Bearing positions: Rotating shafts, transmission system power bushings

   • Benefits: Withstand high torque and dusty working conditions, eliminating lubricant contamination issues.

Applications in Mining Equipment

1. Grinding Mills & Crushers

   • Bearing positions: Roller shafts, rotor bearings (connecting rod bearings, power bushings)

   • Benefits: Designed for harsh dusty environments, reducing lubricant use and lowering maintenance frequency.

2. Conveyors & Roadheaders

   • Bearing positions: Drive shafts, oscillating components with power bushings

   • Benefits: Provide high wear resistance and impact strength, ensuring continuous and stable operation.

Applications in Loading Equipment

1. Loaders

   • Bearing positions: Bucket linkages, hydraulic cylinder rod bearings, drive system power bushings

   • Benefits: Withstand frequent loading/unloading operations under heavy loads while providing long-lasting performance.

Conclusion

In construction, mining, and loading machinery, the most common application positions of graphite copper self-lubricating bearings are:

• Connecting rod bearings

• Power bushings

From concrete mixers, grinding mills, and crushers to bulldozers, excavators, and loaders, graphite copper bushings deliver self-lubrication, wear resistance, and impact strength—meeting the toughest working conditions while reducing maintenance costs and enhancing equipment reliability.

If you need detailed technical parameters, selection guidance, or application-specific solutions, feel free to contact our engineering team for professional support.