Views: 121 Author: Site Editor Publish Time: 2025-06-29 Origin: Site
Bearing grade PEEK is composed of pure PEEK+30% （carbon fiber + graphite +PTFE）. It has a lower coefficient of friction and a higher thermal conductivity than pure PEEK, while also having higher strength. It is suitable for use in environments with high-frequency friction and high temperatures.
PTFE material is resistant to high temperatures. It is renowned for its corrosion resistance, wear resistance and low coefficient of friction. At the same time, graphite also has an extremely excellent self-lubricating performance. After adding PTFE material and graphite to PEEK, the friction coefficient will decrease and can reach 0.14.
It is well known that PEEK resin itself has a low coefficient of friction and self-lubricating properties, and it can achieve excellent results without the addition of lubricating oil.
However, in another blog, we mentioned that the coefficient of friction of PEEK material changes over Tg Temperature.
In another blog post, we mentioned that when the temperature of PEEK material over Tg, the material will soften, resulting in an increase in the coefficient of friction. However, PEEK material with added carbon fibers maintains relatively good wear resistance at high temperatures.
Bearing grade PEEK, due to the addition of carbon fiber fibers, has a slower decline in wear resistance at high temperatures.
Both carbon fiber and graphite have high thermal conductivity. When filled into PEEK, they can significantly enhance the material's thermal conductivity, enabling heat to be transferred and dissipated more quickly within the material. This is conducive to improving the material's heat dissipation efficiency under high load and high speed conditions, preventing local overheating, and thereby enhancing the material's reliability and service life. It can be applied to the heat dissipation components of electronic devices, the heat dissipation systems of high-performance engines, etc.
When applied in high-friction scenarios, Bearing grade PEEK can quickly conduct heat away from the friction areas on the surface, avoid softening caused by local frictional heating, and maintain good friction resistance.
Aircraft engine components (such as sealing rings, bearing housings).
High-temperature resistant structural components for spacecraft.
Turbocharger assembly (high-temperature resistant, oil-resistant).
Electric vehicle battery system (high-temperature resistant insulating components).
Downhole tools (resistant to high pressure and corrosion).
Valves and pump components (resistant to chemical media).