Like Ceramic Hybrid, Zero Ceramic use a combination of ceramic (Silicon Nitride – Si3n4) balls and steel races, except they are of higher Grade 3 quality. The races are also black oxide treated and ground toa mirror finish which prevents corrosion and provides near perfect efficiency and tolerances.

• Bearing Code: MR 23327
• Dimensions: 23 x 32 x 7mm
• ABEC: 5
• Grade: 3
• Seals: LLB
• Grease: Kyodo Yushi PS-2
• Application: Hubs, Bottom Brackets
• Weight: tbc