Dimensions: 8mm inner diameter × 22mm outer diameter × 7mm width Ring & Ball Material: Zirconia (ZrO?): High fracture toughness, excellent wear resistance, ideal for moderate to high loads Density: Approximately 40–60% lighter than steel, reducing centrifugal force and allowing higher rotational speeds Corrosion Resistance: Inert to most acids, alkalis, salt water, and solvents – will never rust Electrical Properties: Non-conductive (excellent electrical insulation), non-magnetic