High Performance Mountain Rear Hub Ball Bearings For Industry Nine Rubber Sealed Closure With Double Sided Seals Low Friction Grease Corrosion Resistant Chrome Steel 52100 Balls Low Friction Cage ABEC-1 Precision Premium Replacement

These bearings replace worn or damaged rear hub bearings on mountain bikes, delivering smooth rotation and reliable sealing against dirt and water in rugged riding conditions. They fit rear hubs with rubber-sealed closures and double-sided seals.

✅ Pack: 4 bearings in set for rear hub
✅ Closure: Rubber sealed with double-sided seals
✅ Material: Chrome steel 52100 balls
✅ Precision: ABEC-1

💡 What is a sealed ball bearing used for in bike hubs? A handy explanation of why these bearings matter for mountain bike rear hubs. - Supports smooth rotation under load - Helps keep grease in and contaminants out, extending life - Easy to replace with standard hub bearings