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Thermoplastic Polyamide-imide (PAI), bearing grade

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Thermoplastic
Polyamide-imide (PAI), bearing grade
Property Value in metric unit Value in US unit
Density 1.46 *10³ kg/m³ 91 lb/ft³
Water absorption, 24hrs, 20ºC 0.4 % 0.4 %
Tensile modulus 5.5 GPa 800 ksi
Flexural modulus 5.8 GPa 835 ksi
Compressive modulus 6.6 GPa 950 ksi
Tensile strength 103 MPa 15000 psi
Flexural strength 159 MPa 23000 psi
Compressive strength 152 MPa 22000 psi
Elongation 6 % 6 %
Hardness, Rockwell 107 RM 107 RM
IZOD impact strength, notched 75 J/m 1.4 ft-lbs/in
Thermal expansion (20 ºC) 2.5*10-5 ºCˉ¹ 1.4*10-5 in/(in* ºF)
Thermal conductivity 0.53 W/(m*K) 3.7 BTU*in/(hr*ft²*ºF)
Glass transition temperature 275 ºC 527 ºF
Maximum work temperature 260 ºC 00 ºF
Dielectric constant, 1MHz 6.0 - 6.0 -
  • Very good wear resistance;
  • High thermal resistance;
  • Radiation stability;
  • High strength;
  • High stiffness;
  • Low thermal expansion;
  • Good chemical resistance.

Applications: bearings, bushings, pen balls, seal rings, bearing cages, pump parts, aerospace components, piston rings, engine trransmission parts, valve seats.

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thermoplastic_polyamide-imide_pai_bearing_grade.txt · Last modified: 2013/08/04 by dmitri_kopeliovich
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