Premium G5 Silicon Nitride Si3n4 Ceramic Ball for Precision Applications/Bearing/Grinding/Auto Parts/Valve. Premium G5 Grade Material: High precision silicon nitride ceramic balls available in G5 to G100 grades. Comprehensive Customization: Full customization, minor customization, and flexible options from samples or designs. ISO 9001 Certified Quality: Manufactured under ISO certification with 100% visual and function inspection. Superior Material Properties: Features high fatigue life, high strength, wear resistance, and non-magnetic characteristics. Wide Size Range: Diameter options from 0.1mm to 140mm for various precision applications. Fast Delivery Capability: Off-season lead time within 15 workdays; peak season 1-3 months. OEM and ODM Services: Professional team offers OEM and ODM services for custom manufacturing needs. Multi-Industry Application: Suitable for automotive, bearings, valves, robots, and high-precision linear motion systems.