100 pcs 1.8mm Silicon Nitride Ceramic Ball G5 Class

At 800 ℃, the strength and hardness remain almost unchanged, with a density of 3.20g/cm3, which is almost 1/3 of the weight of bearing steel. When rotating, the centrifugal force is small, and high-speed operation can be achieved.

25 1/4″ Inch G5 Precision Si3N4 Silicon Nitride Ceramic Bearing Balls

Standard Diameter: 1/4″ / .25 InchesMetric Diameter: 6.35Grade: 5Material: Si3N4 Silicon NitrideBall Weight (each): .01531 Ounces / 0.434 GramsSilicon Nitride (Si3N4) Ceramic Balls are formed from a new material suitable for applications where high loads, high speeds and extreme temperatures are factors. Long life and the need for minimal lubrication make this material appropriate for extreme applications. Silicon nitride is a non-porous, non-magentic, non corrosive, and lighter than steel material. Silicone nitride balls are harder than steel allowing them to withstand the most rigorous environments. Ceramic balls are almost friction-less because they are non-porous which gives them the ability to spin faster than steel balls.

4PCS 608 ZrO2 Zirconia Full Ceramic Bearing Full ZrO2 Ceramic Ball Bearing Zi…

Full ZrO2 ceramic ball bearing. Inner Race/Outer Race Material: Zirconia (ZrO2). Cage Material: Zirconia (ZrO2). high-quality zirconia material, wear-resistant, corrosion-resistant, acid-base resistant, oil-free self-lubricating, high-temperature resistance of 180 ℃, non magnetic, insulation non-conductive, long service life, low noise, stable rotation, high accuracy, and wide application range.