• Deep groove ball bearings model 99502H-2RS, size: 5/8 inches (inner diameter), 1-3/8 inches (outer diameter), 11mm (thickness) • Double sealed to keep lubricant inside and prevent dust entry • Suitable for high-speed operation and low friction • Made of chrome steel (GCr15), offering durability and resistance to deformation under heavy loads • Smooth operation, high efficiency, and low noise level (Z2 level) • ABEC-1 (P0) tolerance • Dynamic load capacity: 4605N; static load capacity: 2774N • Pre-lubricated and normal precision • Suitable for radial and axial loads in both directions • Require little maintenance and are cost-effective • Widely used in industrial machinery, micro motors, small rotary motors, office equipment, and other industrial fields