PEEK Bearing Grade
PEEK Bearing Grade Overview
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.
Physical
| 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 |
Mechanical
| 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 |
Thermal
| 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 |
Electrical
| Property | Value | Typical ASTM Test |
|---|---|---|
| Specific Surface Resistance (Ω/square) | 1.4E5 | D 257 |
Other
| 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.