Page 8 of Introduction of Materials and Products for Applications by NTN Corporation Japan

introduction of materials and products for applications 4-8 sliding materials for high contact pressures 300 in general the allowable pressure for plastics material is low when compared with metal material however it can be used under high pressure by bonding it to a backing metal or using a thin layer of plastics which is reinforced with filler 1 bearee pi the bearee pi series with a base resin of polyimide can carry 50 to 100 mpa of allowable pressure the grade to be adopted is selected according to temperature sliding velocity and manufacturing method table 8 allowable pressure and manufacturing method pressure mpa 250 200 150 100 50 0 25 °c t t =1 °c 00 2 t °c 50 0.02 0.04 0.06 0.08 0.10 0.12 0.14 deformation mm figure 7 deformation compressive strain by load pressure grade bearee pi 5001 bearee pi 7000 allowable pressure mpa kgf/cm2 50 250 500 2,500 manufacturing method extrusion forming coating remarks the deformation is measured while bearee fl 9000 is clamped between steel plates with load applied for 60 minutes the deformation lowers or is reduced when bearee fl 9000 is bonded to backing material 1,000

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