High-Precision Miniature Deep Groove Ball Bearing (634-639 Series)
Ultra-smooth full hybrid ceramic bearings with silicon nitride balls and chrome steel races for reduced friction and extended lifespan. Ideal for high-speed applications like drones, RC models, dental tools, and precision instruments. Corrosion-resistant and maintenance-free design ensures reliable performance in harsh environments. Low-noise operation perfect for sensitive equipment. Exclusive bulk pricing for wholesale buyers—global logistics support with guaranteed lowest rates. Custom packaging available for large orders. Upgrade your machinery with premium-grade bearings engineered for efficiency and durability.