Premium 6701ZZ Bearing 12x18x4mm Shielded

12x18x4 miniature double-shielded bearing
✔️ chrome steel ball bearing for RC and small machinery use

This single 12mm x 18mm x 4mm deep groove ball bearing is made from high-strength chrome steel, perfect for RC cars, trucks, and other compact applications. It’s built for long-lasting rotation up to 30,000 RPM, with dual metal shields to keep dust and debris out while maintaining smooth motion.

✅ Size: 12mm inner diameter x 18mm outer diameter x 4mm width
✅ Chrome steel construction for strong, smooth performance
✅ Double metal shields (ZZ) for debris protection
✅ Pre-lubricated with grease and ready to install
✅ Pack size: one bearing
✅ Common fit for multiple RC models including Corally and Serpent

💡 Why are double-shielded bearings preferred for high-RPM RC vehicles?
They maintain internal lubrication while protecting against dust and dirt intrusion at speed.
- Provide longer bearing life under extreme RPM
- Reduce friction drag during high-speed runs
- Keep motion smooth and consistent under tough conditions

A small but mighty bearing, ideal for high-speed RC action or any tight-space mechanical project.