SF-1B Bronze Base Rolled Bearings

SF-1B bronze bushing is made of bronze base, sinter with bronze powder and PTFE layer with filling material of anti-high temperature. It has high safety factor, and is particularly appropriate for high temperature environment where no oil is effcient and

SF-1B product parameters

Grade   SF-1B
Material   Copper plate+Copper powder+(PTFE+ filler)
Load capacity Static load N/mm2 250
Dynamic load N/mm2 140
Oscoillation Load N/mm2 60
Max line speed Dry friction m/s 2.5
Oil lubricationm/s >5
PVvalue limit Dry friction N/mm 2 · m/s 1.8
Oil lubricationN/mm 2 · m/s 3.6
Friction coef uμ Dry friction 0.08~0.20
Oil lubrication 0.02~0.12
Mating shaft Hardness HB >220
Roughness Ra 0.4~1.25
Working temperature°C -200~+280
Thermal conductivity W/mk 60
Coefficient of linear expansion 18×10 -6/K
Outside surface Plating No

 

 

Typical application

At present, the product has been widely used in metallurgical iron and steel industry, continuous casting machine billet raceway, high temperature furnace equipment, cement grouting pump and screw conveyor.

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