High-Precision Deep Groove Ball Bearing (6303-6322 2RS Series)

Ultra-Durable Construction
Premium chrome steel core with hardened surfaces ensures extended lifespan under heavy loads. 2RS rubber seals provide superior dust/water resistance for harsh environments.
Smooth & Quiet Operation
Precision-polished raceways and grade-20 steel balls minimize friction, delivering vibration-free rotation at 12,000+ RPM. Ideal for electric motors, gearboxes, and industrial machinery.
Wide Compatibility
Covers 12 standard sizes (6303-6322) with 25-140mm OD. Sealed design prevents lubricant leakage in food processing, automotive, and conveyor systems.
Bulk Discount Advantage
Direct factory pricing with 30% cost savings on 100+ units. Ships globally with OEM-compliant packaging.
Reliability Guaranteed
ISO 9001-certified manufacturing. Tested for 50,000+ cycles. Backed by 3-year warranty against defects.