Premium 304 Stainless Steel Hybrid Deep Groove Ball Bearing with Si3N4 Ceramic Balls

Ultra-smooth SR8-2RS bearing features corrosion-resistant 304 stainless steel housing for extreme durability. Silicon nitride (Si3N4) ceramic balls reduce friction by 40% compared to standard steel bearings, delivering superior speed and load capacity.

Sealed with high-grade rubber (RS type) for dust/water protection in harsh environments. Precision grinding ensures ≤0.003mm runout tolerance for vibration-free operation.

Perfect for high-performance applications: electric skateboards, CNC spindles, medical equipment, and food processing machinery. Hybrid ceramic-steel construction eliminates electromagnetic interference in sensitive devices.

Industrial-grade lubrication extends service life to 50,000+ hours. Non-magnetic and chemical-resistant for lab/marine use. Bulk pricing available for OEM/wholesale buyers.