Boundary lubrication bearing product description

Boundary lubrication bearing product description: metallographic organization and material structure organization
1. POM and lead mixture 0.3~0.5mm
2. Spherical bronze powder 0.2~0.3mm
3. Steel back 0.4~2.2mm
4. Electroplating layer: the thickness of copper plating layer is 0.008mm

Boundary lubrication bearings are based on steel plate, sintered spherical bronze powder in the middle, rolled modified polyoxymethylene (POM) on the surface, and contain oil storage pits. It is suitable for places with low speed and medium load under normal temperature conditions, replacing traditional copper sleeves, reducing costs and extending service life. Under special circumstances, it can be used on a rolling mill to save the refueling frequency and simplify the replacement procedure. This product has been widely used in automobile chassis, forging machine tools, gold mining machinery, engineering machinery, hydropower, steel rolling industry and other fields.

Technical Parameters:
Maximum bearing pressure: 70N/mm2
Applicable temperature range: -40°C~+130°C
Maximum sliding speed: 2.5m/s
Friction coefficient: 0.05~0.25
Allowable maximum PV value (dry): 2.8N/mm2 .m/s
Allowable maximum PV value (oil): 22N/mm2 .m/s

Processing form:
It can be processed into straight sleeves, gaskets, sliders, different parts, etc.; generally, it cannot be processed into flange bushings, and the surface treatment is mostly copper plating.

Application features:
1. Good load bearing and good wear resistance.
2. It is suitable for rotating motion, rocking motion under high load and low speed, and occasions where it is not easy to form hydrodynamic lubrication under load and frequent opening and closing.
3. Under boundary lubrication conditions, it can be maintained without oil for a long time, and adding oil in the over layer will make the bearing life longer.
4. The surface plastic layer can leave a certain margin during processing and molding, and can be processed by itself after assembling and pressing into the seat hole to achieve a better assembly size.
5. The products are mainly used in automobile chassis, metallurgical machinery, mining machinery, water conservancy machinery, construction machinery, agricultural machinery, steel rolling equipment, etc.

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