High-quality Hybrid Ceramic Si3N4 ABEC9 deep groove ball bearings for unmatched durability and precision. Designed with silicon nitride ceramic balls for superior heat resistance and reduced friction, ensuring high-speed performance. Precision-engineered 608/608RS model (8x22x7mm) features a deep groove design for smooth rotation and long service life. Ideal for high-speed applications like skateboards, electric motors, and industrial machinery. RS shields provide effective dust and debris protection while maintaining lubrication. ABEC-9 rated for exceptional accuracy and minimal vibration. Perfect for hobbyists, engineers, and manufacturers seeking premium-grade bearings at wholesale prices. Our global supply chain guarantees the lowest market price for bulk orders.