Cylindrical plain bearing IB021

coatedsteelcarbon steel

Steel ( DIN-St12|ASTM-A366/A366M-97|JIS-SPCC ) + Bronze ( CuSn8Zn3 ) + POM Introduction Marginally lubricated bearings(blue POM), made of low carbon steel as base material, are produced by the process of being sintered bronze powder as medium layer and coated blue POM as layer. They are in conformity with the European RoHS environmental protection standards and widely used in the applications of truck, hydraulic transmission and engineering machinery due to the advantages of good wear resistance and good load capacity. Physical and Mechanical Properties thermal conductivity λ 52 W/mK max. operating temperature Tmax +130 ℃ min. operating temperature Tmin -40 ℃ compressive yield strength δc 380 N/mm max. static load Psta,max 140 N/mm max. dynamic load Pdyn,max 70 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 0.06-0.12 shaft surface finish Ra ≤0.4 µm shaft hardness-normal ＞200HB shaft hardness-for service life＞2000 hours ＞350HB