5.556mm Steel Balls Solid Carbon Steel Balls 50pcs Hunting Ball Bearing Ball

5.556mm Carbon Steel Balls - Solid Steel Balls for Bearings, Crafting & Hardware (50pc Pack)
✔️ Diameter 1-20 mm, ±0.05 mm; Carbon steel; 50 pcs; Not waterproof or rust-proof.

This set of 5.556mm carbon steel balls delivers solid, precise spheres for bearings, motors, hardware, electronics, and decorative uses. Handy for makerspaces, hobbyists, machine shops, and DIY projects where smooth rotation and precise weight balance matter.

✅ Diameter: 1-20 mm with ±0.05 mm tolerance
✅ Material: solid carbon steel
✅ Pack size: 50 pieces
✅ Finish: standard carbon steel; not waterproof or rust-proof
✅ Applications: bearings, motors, hardware, electronics, crafts, and decorative spheres
💡 What is a steel ball bearing used for in mechanical assemblies? This quick answer covers the core idea and practical uses for the bearing ball. - Provides a smooth, round bearing surface for low-friction rotation - Supports radial loads and stabilizes rotating shafts - Commonly used in bearings, motors, precision instruments, and hardware assemblies - Handy for crafts and DIY projects needing balanced weight and durable parts This handy component makes real-world projects perform more reliably.