Ketron® HPV PEEK

The addition of carbon fibers, PTFE and graphite to virgin PEEK results in a Ketron PEEK "Bearing Grade" (colour: black). Its excellent tribological properties (low friction, long wear and high pressure-velocity capabilities) make this grade especially suited for wear and friction applications.

Product Overview

• Very high maximum allowable service temperature in air (250 °C continuously, up to 310 °C for short periods of time)
• High mechanical strength, stiffness and creep resistance, also at elevated temperatures
• Excellent chemical and hydrolysis resistance
• Excellent wear & frictional behaviour
• Very good dimensional stability
• Excellent resistance to high energy radiation (gamma- and X-rays)
• Inherent low flammability and very low levels of smoke evolution during combustion 

Engineering Notes.

The stiffness of all PEEK grades drops off significantly and expansion rate increases above its glass transition temperature (Tg) of 150 °C (300 °F). A material like Duratron^® PAI would be better suited for close tolerance bearings or seals operating at temperatures higher than 150 °C (300 °F).