10-Pack 4mm Loose Ceramic Balls Al2O3 Alumina Oxide Bearing Balls

10-Pack 4mm Loose Ceramic Balls - Al2O3 (Alumina Oxide)
✔️ G10 precision bearing balls for dry, smooth performance

This 10-pack of 4mm loose balls is made from Al2O3 (Alumina Oxide) ceramic, known for its strength, hardness, and chemical resistance. These are great for lightweight applications like bicycles, small bearings, or devices that need rust-proof precision in a compact size.

✅ Diameter: 4mm
✅ Material: Al2O3 (Alumina Oxide) ceramic
✅ Precision Grade: G10
✅ Lightweight, non-magnetic, and corrosion-resistant
✅ Quantity: 10 balls

💡 What are Alumina Oxide ceramic balls good for in precision motion systems?
They’re a go-to for clean, durable movement without lubrication.

• Harder than steel with excellent wear resistance

• Resist acids and moisture in chemical or sterile environments

• Stay stable in high heat or electric-sensitive setups

• Great for bikes, instruments, or food-grade machines

Get this 10-pack and enjoy clean, quiet performance with zero rust, because smooth is always better!