6804-2RS Hybrid Ceramic Deep Groove Ball Bearings 20X32X7Mm(Abec5)

Description Material: The balls are made of silicon nitride (Si3N4) ceramic, which offers high hardness, high-temperature resistance, and corrosion resistance. The housing is made of bearing steel, providing excellent structural strength and durability. High-Speed Capability: Ceramic Si3N4 balls and bearing steel offer superior performance compared to traditional steel bearings, providing smoother rotation, reduced friction, and ceramic balls are insulated and anti-magnetic, suitable for electric field environments Double Sealed: Sealed on both sides with rubber to protect against dust, dirt, and moisture, ensuring smooth operation and extending its lifespan. ABEC5 Precision Bearing: Lower manufacturing tolerances compared to lower-rated bearings, resulting in smoother rotation and less friction. Material Shield Type: Double Rubber Sealed Race Material: Bearing Steel Ball Material: Ceramic and Si3N4 Selecting Guide Open Type (No Designation Suffix) - Suitable for high-speed and even very high-speed operation. Shielded (Designation Suffix Z/ZZ) - High speed. Protect from dirt and debris. Sealed (Designation Suffix RS/2RS) - Made of sheet steel reinforced nitrile butadiene rubber (oil- and liquid-resistant). Lower limit speed than metal shielded bearings.