Ceramic Grade 3 6902 Sealed Bearing 15x28x7

• ABEC 5 precision cartridge bearing
• CERBEC USA Grade 3 Si3n4 Silicon Nitride balls
• 52100 high carbon Chromium alloy races
• Races receive 3 cryogenic treatments and a rust proof Magnetite finish

ABI Enduro Zero Ceramic Cartridge Bearings with ABEC 5 Rating. All measurements are in millimeters Grade 3 Balls and Magnetite Rust Proof Finish ABEC 5 Precision and Silicone W Seals 3 Times Cryogenic Race Treatment Item Specifications Bearing I.D. 15mm Bearing O.D. 28mm Bearing Thickness 7mm Manufacturer Number 6902