An excavator bushing is a component of an excavator or other heavy equipment that helps to connect different parts of the machinery together. It is a cylindrical or tapered metal sleeve that is inserted into a hole or bore and acts as a bearing surface to support and guide a shaft or pin. The bushing is usually made of high-strength steel or bronze and embedded in a special solid lubricant material to reduce friction and wear.

Excavator bushings are commonly used in excavator booms, arms, and buckets, as well as other heavy equipment components such as track linkages and idler wheels. They are designed to withstand high loads and harsh operating conditions and can be easily replaced when worn or damaged. Proper maintenance and lubrication of excavator bushings are important to ensure optimal performance and prevent premature wear or failure of the equipment.

The first major consideration for anyone in the excavator market will be the size, digging, and lifting capacity required for the project. Whether it is a large machine or a 1-4 tonne mini excavator. Choosing the right excavator bushings is very important, depending on the nature of the work to be completed.

There are several types of oilless bearings that may be used in excavators, including:

• Composite bearings: These bearings are made of steel back sintered bronze with POM or PTFE coating, to provide high strength and self-lubrication.
• Solid lubricant bearings: These bearings are made of a solid lubricant material, such as graphite, that is embedded in a metal matrix. The solid lubricant material provides self-lubrication.

The excavator bushings are an important part of the machine’s chassis system, supporting the weight of the excavator and helping it to move over the terrain.

Oilless bearing acts as a pivot point between the excavator’s track chain and its link components. They are cylindrical sleeves made of cast bronze bushing embedded in a solid lubricant that is pressed into the bores of the link assembly to create a wear-resistant bearing surface for the rolling of the track chain. The solid lubricant provides a thin film of lubrication between the two surfaces, helping to reduce friction, wear, and heat generation. As the self-lubricating material wears, the lubrication layer is continually replenished, providing long-lasting, maintenance-free operation.