Full Ceramic Silicon Nitride: Si3N4 Grade 3 balls and races. Kit contains 3x6001, 2x608 bearings. ABEC 5 precision cartridge bearing. Grade 5 Si3N4 Silicon Nitride balls. 52100 high carbon Chromium alloy races. Races receive 3 cryogenic treatments for endurance.
- Silicon Nitride is the hardest, most resilient fabric bearings can be constructed of
- Specially designed seals on the element sides of the bearings results in the lowest friction possible
- Internal side has a rigid and durable PTFE retainer
- Packed with Kyodo Yushi PS-2 grease.
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