Cylindrical plain bearing IB030

carbon steelbronzegraphite

Material Steel ( DIN-St12|ASTM-A366/A366M-97|JIS-SPCC ) + Bronze ( DIN-CuPb10Sn10|SAE-797|JIS-LBC3 ) + Graphite Bronze Hardness 70HB-100HB Introduction Bimetallic bearings(CuPb10Sn10/graphite), made of low carbon steel as base material, are produced by the process of being sintered tin bronze CuPb10Sn10 powder as layer and rolled diamond oil pockets on the surface of alloy layer for storing graphite. They are widely used in the applications of automotive, truck, hydraulic transmission and engineering machinery due to the advantages of low friction coefficient, good self-lubricating and good load capacity. Physical and Mechanical Properties max. operating temperature Tmax-greased +150 ℃ max. operating temperature Tmax-oil lubricated +250 ℃ min. operating temperature Tmin -40 ℃ max. static load Psta,max 300 N/mm max. dynamic load Pdyn,max 140 N/mm max. sliding speed v-greased 2.5 m/s max. PV factor-greased 2.8 N/mm2·m/s coefficient of friction f-greased 0.05-0.12 coefficient of friction f-oil lubricated 0.04-0.12 shaft surface finish Ra ≤0.8 µm shaft hardness-normal ＞200HB shaft hardness-for service life＞2000 hours ＞350HB