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Material Overview
What is PEEK PTFE?
PEEK PTFE is a bearing-grade, internally lubricated variant of PEEK — polyetheretherketone — formulated with PTFE to reduce coefficient of friction and improve sliding wear performance in dynamic contact applications. The internal PTFE lubricant is distributed throughout the matrix, so lubrication is built-in and does not wash off, evaporate, or require replenishment — an important advantage in applications where external lubricants are prohibited or impractical.
PEEK PTFE retains the high-temperature capability, chemical resistance, and dimensional stability of the PEEK family while delivering substantially reduced friction compared to unfilled PEEK. The PTFE addition lowers the dynamic coefficient of friction and reduces wear rate in continuous-motion applications, extending component service life under load. This makes PEEK PTFE the appropriate grade when a part must slide, rotate, or reciprocate against a mating surface with minimal material removal over time. For specific friction and wear rate values, consult the Ready Plastics datasheet.
Grade selection. PEEK PTFE is the entry-level bearing grade in the family — offering meaningful friction and wear reduction over unfilled PEEK. For applications demanding the absolute lowest friction and highest wear resistance, step up to PEEK PVX — triple-blend wear grade, which combines PTFE, graphite, and carbon fiber for maximum tribological performance. When structural stiffness rather than lubrication is the priority, see PEEK CF30 or PEEK GF30. ESD-safe parts for cleanroom use belong with PEEK ELS.
Applications. PEEK PTFE is specified for bushings, thrust washers, bearing pads, seal rings, and other sliding-contact components in aerospace, semiconductor, chemical processing, and medical device applications. The material machines well on CNC equipment with carbide tooling; sharp edges and moderate speeds minimize heat buildup and preserve surface finish on bearing bores and OD surfaces. Contact Ready Plastics for available stock sizes in sheet and rod, and for full datasheet specifications.
Frequently Asked Questions
PEEK PTFE, answered
What is PEEK PTFE?
PEEK PTFE is an internally lubricated, bearing-grade formulation of PEEK (polyetheretherketone) that incorporates PTFE as a solid lubricant within the material matrix. The PTFE reduces coefficient of friction and improves sliding wear resistance compared to unfilled PEEK, making it suitable for bushings, thrust washers, bearing pads, and other dynamic contact parts that operate without external lubrication.
What is the difference between PEEK PTFE and PEEK PVX?
Both are bearing grades, but PEEK PVX is a more aggressive tribological formulation combining PTFE, graphite, and carbon fiber — a triple-blend that delivers higher wear resistance and lower friction than PEEK PTFE alone. PEEK PTFE is the appropriate starting point for moderate bearing loads; PEEK PVX is recommended for more demanding duty cycles with higher contact pressures, speeds, or temperature.
Does the internal lubrication in PEEK PTFE wear out?
No. Because PTFE is distributed throughout the material matrix rather than applied as a surface coating or external lubricant, it remains present throughout the part's life. As the surface wears in service, fresh PTFE-containing material is continuously exposed — maintaining lubrication as long as material remains.
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