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SF - 2X boundary lubrication bearing steel, is among the matrix of sintering spherical surface rolling, bronze powder modified POM as its), and contains oil storage pit. It is interesting condition, low-speed carries sites, replace traditional sheath, which decrease costs and prolong service life. Under special circumstances, the mill on the use and can save refueling frequency, simplified replacement procedures. The products have been widely applied in automobile chassis, forming machins tooles, cure gold mining machinery, construction machinery, water and electricity, steel rolling industry, and other fields. Technical parameters The maximum load pressure: 70N/mm2 Applicable temperature range: - 40 + 130 degrees Celsius Maximum sliding speed: 2.5 m/s Friction coefficient: 0.05 0.25 Allow the highest PV value: 2.8 N/mm2. J m/s Allow the highest PV value: 22N/mm2. J m/s Application characteristics: 1. Bearing, wear-resisting performance is good. 2. Suitable for high load capacities rotation movement, rocking movement and often in loads on-off frequent and is formed not easily Hydrodynamic lubrication occasion. 3. In boundary lubrication conditions can work long time without oil, while in layer refueling keeps the bearings long service life. 4. Surface plastic layer in processing molding may leave some allowance, assembly pressure table aperture to processing, in order to reach To better assembly size. 5. Products are mainly applied in auto chassis, metallurgical machinery, mining machinery, hydraulic machinery, construction machinery, agricultural Machinery, rolling equipment etc. SF - 2X series chemical characteristics Bearing type vacuum in water vapor in the air in dilute acid in alkaline acid solution SF - 2 good good good good poor no no good MMD - 10 friction and wear test Model test time test conditions friction coefficient final temperature (degrees Celsius) eventually wear allowance (mm) Lubrication speed pressure SF - 2 3hr fat 0.4 m/s 3.5 N/mm2 0.071 40 0.006