Our 6803 bearing is available in open, shielded (ZZ), or sealed (2RS) configurations to match your environmental requirements. The thin-section design provides engineers with greater flexibility in designing compact systems for semiconductor equipment, optical scanners, drone motors, and high-speed automation systems. Dimensions: Bore: 17 mm, Outer Diameter: 23 mm, Width: 4 mm Dynamic Load Rating (Cr): 2.8 kN Static Load Rating (Cor): 1.45 kN Material: Rings: Gcr15 Chrome Steel; Balls: Silicon Nitride (Si3N4); Cage: Reinforced Nylon 66/Stainless Steel (optional) Max Operating Speed: Up to 40,000 RPM (grease lubricated) Weight: Approximately 0.015 kg (30% lighter than all-steel equivalents)