4mm Ceramic Bearing Balls Si3N4 Silicon Nitride G5 Precision 10 Piece Set Self Lubricating High Hardness Wear Resistance Pro Grade Corrosion Resistant Lightweight Bearings

4mm Silicon Nitride Ceramic Bearing Balls, G5 Precision
✔️ Diameter 4 mm, G5 precision, silicon nitride ceramic, 10 pcs

These 4mm ceramic bearing balls are silicon nitride (Si3N4) with G5 precision grade, self-lubricating, lightweight, and highly resistant to corrosion. They excel in sealed ball bearing assemblies, lightweight linear slide units, casters, drawer slides, and end-stop mechanisms where smooth rotation matters.

✅ Size: 4 mm diameter
✅ Precision: G5
✅ Material: Silicon Nitride (Si3N4)
✅ Package: 10 pieces
✅ Finish: Diamond polished
✅ Hardness: Vickers up to 1700 HV

💡 What is a ceramic bearing ball used for in precision mechanical systems?

This handy piece helps reduce friction and wear while enabling smooth rotation in small moving parts. - High hardness and wear resistance for long life - Low friction operation in high-speed or delicate mechanisms - Excellent corrosion resistance for demanding environments - Lightweight strength suitable for tight tolerances