IB033

Material
Steel ( DIN-St12|ASTM-A366/A366M-97|JIS-SPCC ) +
Bronze ( DIN-CuPb24Sn|SAE-49)

Introduction
Bimetallic bearings(CuPb24Sn), made of low carbon steel as base material, are produced by the process of being sintered leaded tin bronze CuPb24Sn4 powder as layer. They are widely used in the applications of main shaft and connecting rod of internal combustion engine due to the advantages of good fatigue resistance, good bump resistance and good load capacity.

Usage

 

dry

  poor

oil lubricated

  good

grease lubricated

 very good

water lubricated

 poor

process fluid lubricated

 poor

 

Physical and Mechanical Properties

 

max. operating temperature Tmax-greased

  +150

max. operating temperature Tmax-oil lubricated

 +250

min. operating temperature Tmin

 -50

max. static load Psta,max

 250 N/mm

max. dynamic load Pdyn,max

 120 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

 0.4 µm

shaft hardness-normal

 200HB

shaft hardness-for service life2000 hours

 350HB

 

 

  

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