IB010

 

Material

Steel ( DIN-St12|ASTM-A366/A366M-97|JIS-SPCC ) +
Bronze ( CuSn8Zn3 )
PTFE

Introduction
Dry bearings(steel/black PTFE), 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 automotive, bicycle and hydraulic transmission due to the advantages of lead free, low friction coefficient, good self-lubricating and good wear resistance.
 

Usage

 

dry

   Very good

oil lubricated

   good

grease lubricated

fair

water lubricated

fair

process fluid lubricated

fair

 

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-dry

  2.5 m/s

max. PV factor-dry, continuous

  1.8 N/mm2·m/s

max. PV factor-dry, intermittent

  3.5 N/mm2·m/s

coefficient of friction f-dry

  0.02-0.25

coefficient of friction f-oil lubricated

  0.02-0.12

shaft surface finish Ra-dry

  0.4±0.1 µm

shaft hardness

  hardened/unhardened

 

 

 

 

 

 

 

 

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