Si3N4 precision ceramic ball G5 for precision ceramic ball bearings. Material is silicon nitride. Size from 1.0mm--25.4mm. Grade G5, G10. Color is black. It contain anti-rust function and being good hardness. It also have good polishing and roundness. 

1. Material: Si3N4 ceramic, Silicon Nitride ceramic 
2. Size: 1.0mm-25.4mm 
3.Grades: G5-G20 
4. Color: Black 
5.Applications: Widely used in different types of ceramic, enamel, glass, chemical industry and thick hard material finishing and deep processing of the factory.It is grinding medium of the fine crushing equipment such as ball mill, vibration mill, Cylindrical grinding machine.The crushing grinding efficiency and wear resistance significantly better than ordinary or natural pebble stone ball. 

Ceramic Balls have high strength, high hardness, high wear resistance, high proportion, small volume, high temperature resistant, corrosion resistance, no pollution and other excellent features. At room temperature with high stiffness, no magnetic, electrical insulation.