Loose Ceramic Ball One And One Eighth Inch 28.575mm Si3N4 Silicon Nitride G40 High Precision Bearing Ball For Precision Machinery Housings And Various Applications Suitable For High Precision Bearings In Robotics And General Machinery Needing Low Friction

Single G40 Ceramic Ball, 1-1/8 in dia, 28.575 mm, Si3N4
✔️ 1-1/8 in dia loose ceramic ball (28.575 mm), Si3N4, G40

This loose ceramic ball is a precision component used in bearing assemblies that require minimal friction and high hardness. It fits into 1-1/8 in diameter bearing housings and is common in robotics, CNC tooling, and hobby projects needing ceramic balls.

✅ Material: Ceramic (Si3N4)
✅ Size: 1-1/8 in diameter (28.575 mm)
✅ Type: Loose ball
✅ Grade: G40
✅ Quantity: 1 ball

💡 What is a ceramic ball bearing used for in precision machinery and high-speed applications?

In short, they’re handy for reducing friction and maintaining accuracy in demanding setups.

• Low friction at high RPM for smooth operation
• Corrosion resistance in harsh environments
• Low thermal expansion helps keep tight tolerances
• Lightweight yet strong compared to metal options