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Performance comparison of three common bearing materials
Bearings are important parts in mechanical operation. The use of different materials will bring different performance to bearings. Therefore, different bearings are used in different fields, and their materials are also different. Today, HANKE Bearings shares the performance comparison of the three major materials of bearings based on the knowledge of common bearing materials.
Jun 19,2024
Bearings are important parts in mechanical operation. The use of different materials will bring different performance to bearings. Therefore, different bearings are used in different fields, and their materials are also different. Today, HANKE Bearings shares the performance comparison of the three major materials of bearings based on the knowledge of common bearing materials.
The three common materials of bearings are: metal materials, porous metal materials and non-metallic materials.
1. Metal materials
Bearing metal materials mainly include: bearing alloys, copper alloys, aluminum-based alloys and cast iron.
Bearing alloys: also known as Babbitt alloys, which mainly contain tin matrix and lead matrix, have good comprehensive performance and low mechanical lightness. They are commonly seen in bearing alloys cast on steel or cast iron bearing bases, and are expensive to use.
Copper alloys: mainly contain tin bronze (suitable for medium speed, medium load or heavy load), aluminum bronze (suitable for low speed and heavy load) and lead bronze (suitable for high speed and heavy load).
Cast iron: a light load and low speed bearing material.
2. Porous metal materials
The porous metal materials of bearings are mainly made of powder metallurgy, iron or copper powder mixed with graphite and pressed and sintered. The porous material can store oil and is used in places with stable load, low speed and inconvenient refueling.
3. Non-metallic materials
The non-metallic materials of bearings mainly include: plastic, rubber and nylon. Its characteristics are: low friction coefficient, wear resistance, corrosion resistance, low load and large thermal deformation.
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