4 Pack Bicycle Ball Bearing Retainers 29.5mm Outer Diameter 19mm Inner Diameter With 9 Balls For Crank Mid Axle And Wheel Hub Bearings Durable Steel Cage For Smooth Rolling And Long Lasting Performance

Four-Pack Steel Ball Bearing Retainers for Bike Cranks ✔️ Outer diameter 29.5mm, inner diameter 19mm; 9-ball steel cage; 4-pack

This bicycle ball bearing retainer is made of steel and holds nine balls in a precise cage to ensure smooth rolling. It is commonly used to replace crank bearings and wheel hub bearings on a wide range of bikes, including ordinary bicycles, mountain bikes, lowrider bikes, and stretch bicycles. Before purchasing, measure your bike’s inner and outer diameters to ensure a proper fit.

✅ 4 pack bicycle ball bearing retainers
✅ Outer diameter 29.5mm (1.16"), inner diameter 19mm (0.75")
✅ 9 balls per retainer for smooth rolling and long life
✅ Steel cage provides durability for crank, mid axle, and wheel hub bearings

💡 What is a bicycle ball bearing retainer used for in crank and wheel hub assemblies?

• handy replacement to restore smooth rotation in cranks and hubs
• steel cage with nine balls keeps spacing and protects against wear
• fits 19mm inner diameter head parts and 29.5mm outer diameter cages
• works across ordinary bikes, mountain bikes, lowrider bikes, and stretch bikes