Material Selection :

Inner/Outer Ring & Holding :

PEEK (Long-term use temperature 240℃) :
PEEK is a semi-crystalline engineering plastic, suitable for applications that used in high temperature, chemical solvent process. PEEK material is tough, rigid, creep-resistant, light-resistant, and multi-ray resistant. Screws, nuts, and various spare parts made of this material are widely used in semiconductor equipment, aerospace vehicle industry, automotive electronics and motor industry, oil/gas extraction equipment and even medical equipment or food production equipment.

PTFE (Long-term use temperature -190~260℃) :
PTFE is one of the fluorine-based resins, which is resistant to most chemicals and solvents. Due to excellent electrical properties, non-stick and lubricity, it is widely used in high temperature, chemical, electrical, mechanical and aviation fields.

Ball Material : 
Zirconia