Flange plain bearing IB017

steelPTFEsintered bronze

Material Steel ( DIN-St12|ASTM-A366/A366M-97|JIS-SPCC ) + Bronze ( CuSn8Zn3 ) + modified PTFE Introduction Dry bearings, for shock absorbers, made of low carbon steel as base material, are produced by the process of being sintered bronze powder as medium layer and coated PTFE as lubrication layer. They are in conformity with the European RoHS environmental protection standards and widely used in the applications of all kinds of shock absorbers due to the advantages of lead free, low friction coefficient, good self-lubricating and good wear resistance. Physical and Mechanical Properties thermal conductivity λ 40 W/mK max. operating temperature Tmax +280 ℃ min. operating temperature Tmin -200 ℃ compressive yield strength δc 350 N/mm max. static load Psta,max 250 N/mm max. dynamic load Pdyn,max 140 N/mm max. sliding speed v-oil lubricated 5.0 m/s max. sliding speed v-dry 2.5 m/s max. PV factor-dry 1.0 N/mm2·m/s max. PV factor- oil lubricated 10.0 N/mm2·m/s coefficient of friction f-dry 0.04-0.25 coefficient of friction f-oil lubricated 0.02-0.08 shaft surface finish Ra-dry 0.4±0.1 µm shaft hardness ＞200HB