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Home > SF-2S Marginal Pb-free Bearing

SF-2S Marginal Pb-free Bearing

Substrate characteristics

SF-2S Marginal Pb-free Bearing based on steel backing, sintered porous bronze as its interlayer, surface rolled by acetal resin and polymer material constaining oleophylicity fiber and perform well on low friction factor, well wear performance and oil free condition lubrication. It has been widely applied to winding engines, printing and dyeing machinery, coal-cutters, punch, winch truck, traveling crane etc.

Download the size table
Material organization
1 2 3 4

1. POM with lead 0.3-0.5mm

2. Porous bronze sintere

3. Steel backing

4. Copper plating

Note: Various materials are suitable for SF-2 series products according to different working conditions, such as bronze-backing, stainless steel backing and lead-free material. SF-2Y is an environmental friendly lead-free product and its color is orange.

Application characteristics

SF-2S Marginal Pb-free Bearing is based on a composite material with 3 firmly bonded layers:steel as backing.,intered bronze spherical powder as inter layer and modified POM as lining layer.It has oil pocket for oil lubrication.It fits well for slow speed,heavy duty under normal temperature.It can save cost and prolong working life when replacing normal bronze bushings.It can lower frquency of adding oil, simplify replaement process when it is used on rolling mill.
It is widely applied in chassis of automobile,forging machine, metallurgical machine and mining machine,construction machinery,hydropower,rolling mill etc.

The main parameters
Performance Data
Max Load Capacity P 70N/mm²
Friction Coef μ 0.05~0.25
Working Temperature -40℃~+130℃
Speed limit V 2.5m/s
PV limit 22N/mm²·m/s