One Si3N4 Ceramic Bearing Ball Loose Ball 11.9mm Diameter For Bicycle Bearings And Precision Machinery High Strength Ceramic Ball With Low Friction And Long Life

This item is a single loose ceramic ball made from high-strength Si3N4. It’s commonly used in precision bearing assemblies, bicycle hubs, inline skates, and other mechanical systems where low friction, high hardness, and long wear life matter.

✅ Size: 11.9 mm (15/32 in)
✅ Material: Si3N4 ceramic
✅ Type: loose ball bearing ball
✅ Quantity: 1 per package

💡 What is a ceramic bearing ball used for in precision bearings? - Handy for reducing friction and wear in sealed bearing assemblies - Common in high-speed applications like bike hubs and precision gear systems - Si3N4 ceramic offers high hardness, low thermal expansion, corrosion resistance - Works with ceramic-to-metal liners and linear slide units