PEEK Bearing Grade

PEEK Bearing Grade


What is the Material: PEEK Bearing Grade is a semi-crystalline material filled with 10% of PTFE (Teflon), 10% graphite, and 10% carbon fibers.

Key Material Features: This material is beneficial in applications requiring an increased operational temperature and  increases the limiting PV value, while maintaining properties of other PEEK materials including wear resistance, dimensional stability, mechanical properties, and chemical resistance.

Other Considerations: This material is designed to run at high loads and speeds in hostile environments. This material has notable hydrolysis/steam resistance.


Property Value Typical ASTM Test
Chemical Designation (PEEK) Polyetheretherketone
Trade Names (®, ™) Tecapeek PVX, SustaPEEK, Ketron, Unitex
Filler Carbon Fibers, PTFE, Graphite
Color Black
Density (g/cm^3) 1.46 D 792


Property Value Typical ASTM Test
Modulus of Elasticity (Tensile Test) (psi) 700000 D 638
Tensile Strength at Yield (psi) 11000 D 638
Elongation at Break (%) 2.5 D 638
Flexural Strength (psi) 18000 D 790
Modulus of Elasticity (Flexural Test) (psi) 700000 D 790
Compression Strength: 10% Strain (psi) 16500 D 695
Compression Modulus (psi) 330000 D 695
Impact Strength (Izod) (ft-lbs/in) 0.9 D 256
Hardness (R) 119 D 785
Hardness (M) 95 D 785
Coefficient of Friction (Kinetic, 40 psi, 50 fpm) 0.2 D 3702
Coefficient of Friction (Static) 0.18 D 3702
Wear (K) Factor (in^3-min/ft-lbs-hr) (Against Steel, 40 psi, 50 fpm) 1.00E-9 D 3702


Property Value Typical ASTM Test
Melting Point (°F) 633 D 3418
Deflection Temperature (°F) (264 psi) 530 D 648
Service Temperature Continuous (°F) 500
Service Temperature Intermittent (°F) 572
Thermal Expansion (CLTE) (in/in/°F) 3.11E-5 D 696
Thermal Conductivity (BTU-in/hr-ft^2-°F) 5.69


Property Value Typical ASTM Test
Specific Surface Resistance (Ω/square) 1.4E5 D 257


Property Value Typical ASTM Test
Moisture Absorption (%) (24 Hours) 0.02 D 570
Moisture Absorption (%) (Saturated) 0.03 D 570
Flammability V-0
The data stated are typical values intended for reference and comparison purposes only. The data should not be used as a basis for design specifications or quality control. The information is provided as a guide to the best of our knowledge and given without obligation or liability. Testing under individual application circumstances is recommended.