Ball Bearings Upgrade Kit For Helis 30 V2 Bushings, Rubber Sealed Closures, Double Sided Seals, Low Friction Grease Lubrication, Corrosion Resistant Chrome Steel Balls, High Chromium Steel 521, Precision Replacement For Helis 30 V2

These bearings are high-precision sealed ball bearings designed for RC helicopters and upgrade kits. They’re commonly used in gearboxes, rotor heads, and control linkages to reduce friction and extend component life.

✅ 20 bearings per set, sealed rubber closures
✅ Chrome steel 52100 balls, corrosion resistant
✅ ABEC-1 precision, low friction grease lubrication
✅ Double-sided seals protect from dust and moisture
✅ Compatible with common RC heli upgrade kits

💡 What is a sealed ball bearing used for in RC hobby upgrades? Sealed bearings help keep grease in and contaminants out, boosting performance in gearboxes and rotor heads. Benefits include: - reduced friction for smoother operation - longer service life in dusty or damp conditions - compatibility with standard ABEC-1 upgrade kits - reliable performance under high loads