Enduro Ceramic Hybrid 6903 LLB Sealed Cartridge Bearing 17 x 30 x 7mm

Ceramic Hybrid bearings feature ABEC-5 tolerances and premium features such as LLB seals Graphite Nylon retainers Silicon Nitride Grade 5 balls and cryogenically treated steel races.

ABEC 5 precision cartridge bearing

Grade 5 Si3N4 Silicon Nitride balls

52100 high carbon Chromium alloy races

Races receive 3 cryogenic treatments

"LLB" type 2-lip low-contact Nitrile Butadiene rubber labyrinth seals

Nylon/graphite retainer

Realube Special Ceramic Grade 374 Grease