CERAMIC BEARINGS MATERIALS
Inner and Outer rings:Silicon Nitride Ceramic (Si3N4) and Zirconium Oxide Ceramic (ZrO2)
Retainers:PTFE (standard), PEEK, PI, PA, Ceramic etc.
Balls:Silicon Nitride Ceramic (Si3N4) and Zirconium Oxide Ceramic (ZrO2)

Typical Examples
Heat-resistant 180C --- Inner & Outer ring:ZrO2 / Retainer:PTFE / Balls:ZrO2
Heat-resistant 400C --- Inner & Outer ring:ZrO2 / No Retainer (Full complement of balls) / Balls:ZrO2
Heat-resistant 1100C --- Inner & Outer ring:Si3N4 / No Retainer (Full complement of balls) / Balls:Si3N4

Ball Bearings, Single and Double Angular Contact Ball Bearings, Self-Aligning Ball Bearings, Thrust Ball Bearings, Unit Bearings, etc.