• Miniature ball bearing ABEC-3, models 605-608. • Bearings shielded or sealed on both sides to keep the lubricant inside. • Made of chrome steel for long-lasting durability, smoothness, and low noise. • ABEC 3 (P6) tolerance and Z1 noise level, suitable for general use. • High static and dynamic load rating. • Single row, pre-lubricated, and normal precision. • Suitable for radial and axial loads in both directions. • Low friction and high speed limit, cost-effective and low maintenance. • Made of chrome steel (GCr15) with heat treatment for high hardness and wear resistance. • Ideal for industrial equipment, micro motors, small rotary motors, and office equipment. • Selection guide: Protection (suffix Z/ZZ) for high speed and dirt protection; Sealed (suffix RS/2RS) made of steel sheet reinforced with nitrile rubber, resistant to oil and liquids.