Material
Steel ( DIN-St12|ASTM-A366/A366M-97|JIS-SPCC ) +
Bronze ( CuPb10Sn10|SAE-797|JIS-LBC3 ) +
Bronze Hardness 70HB-100HB
Introduction
Bimetallic bearings(casting type), made of low carbon steel as base material, are produced by the process of being casted tin bronze CuPb10Sn10 powder as layer. They are widely used in the lications of automotive, truck, hydraulic transmission and engineering machinery due to the advantages of good wear resistance 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 ℃
|
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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
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0.04-0.12
|
|
shaft surface finish Ra
|
≤0.8 µm
|
|
shaft hardness-normal
|
＞200HB
|
|
shaft hardness-for service life＞2000 hours
|
＞350HB
|
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