Steel plain bearing IB023

PTFEsintered bronzebronze

Steel ( DIN-St12|ASTM-A366/A366M-97|JIS-SPCC ) + Bronze ( CuSn8Zn3 ) + PEEK + PTFE + Filers Introduction Marginally lubricated bearings(black PEEK), made of low carbon steel as base material, are produced by the process of being sintered bronze powder as medium layer and coated black PEEK for higher working temperature as lubrication layer. They are in conformity with the European RoHS environmental protection standards and widely used in the applications of hydraulic motor, agricultural equipment and wind power equipment due to the advantages of lead free, low friction coefficient, good self-lubricating, good wear resistance and high working temperature Physical and Mechanical Properties thermal conductivity λ 52 W/mK max. operating temperature Tmax +250 ℃ min. operating temperature Tmin -150 ℃ compressive yield strength δc 380 N/mm max. static load Psta,max 140 N/mm max. dynamic load Pdyn,max 100 N/mm max. sliding speed v-oil lubricated 10.0 m/s max. sliding speed v-greased 2.5 m/s max. PV factor-greased 2.8 N/mm2·m/s coefficient of friction f-oil lubricated 0.03-0.08 coefficient of friction f-greased 0.08-0.12 shaft surface finish Ra ≤0.4 µm shaft hardness-normal ＞200HB shaft hardness-for service life＞2000 hours ＞350HB