6701ZZ Shielded Ball Bearings 10 Pack, 12x18x4 Bore Diameter, Chrome Steel Double Shielded, Pre Lubricated With Grease For Smooth Operation, High Durability Bearings Set

Ten-Pack 6701ZZ Shielded Ball Bearings 12x18x4mm
✔️ Pack: 10 shields, 12x18x4mm, chrome steel, pre-lubricated

These shielded deep groove ball bearings deliver smooth rotation and dust protection in compact axles and hubs. Ideal for RC cars, hobby machines, and precision hobby projects that demand reliable, low-maintenance performance.

✅ Inner diameter 12 mm, outer diameter 18 mm, width 4 mm
✅ Shielded ZZ with double metal shields for dust protection
✅ Chrome steel construction for durability and consistent performance
✅ Pre-lubricated with grease for immediate use and low maintenance
✅ Pack of 10 bearings included

💡 What is a shielded ball bearing used for in hobby RC projects and precision gear hubs?

Shielded bearings protect grease and keep out dust, boosting life and smooth operation in small assemblies.

- Shielded design reduces contamination in dusty environments
- 12x18x4 mm size fits many RC parts and small machinery
- Pre-lubricated grease lowers initial friction and maintenance
- Chrome steel construction delivers durability for daily use