Bike Crank Bearing Set Replacement Bottom Bracket For 14 Inch Kids Bikes 9 Ball Bearings One Quarter Inch Ball Size Four Pack With 29mm Outer Diameter And 18mm Inner Diameter For Easy Swap Replacing Worn Crank Bearings

Bike Crank Bearing Set for 14-Inch Kids Bikes - 4 Pack ✔️ OD 29 mm (1.14 in), ID 18.4 mm (0.72 in), 9 balls

This ball bearing retainer is designed for bicycle crank repair. It serves as a replacement bottom bracket bearing for 14-inch kids bikes and similar styles. Includes 4 pieces for easy swap.

✅ Outer diameter: 29 mm (1.14 in)
✅ Inner diameter: 18.4 mm (0.72 in)
✅ Ball size: 1/4 inch (6.35 mm), 9 balls per cage
✅ Includes 4 bearing retainers for replacement

💡 What is a bicycle crank bearing set used for in regular bike maintenance?

It's handy for keeping crank movement smooth and quiet, and it's a common replacement part on many bikes.

- Common uses include replacing worn bottom bracket bearings in kid bikes and standard bicycles.
- Works with 29 mm outer diameter (1.14 in) and 18.4 mm inner diameter (0.72 in), 1/4 inch balls, nine per cage.
- Improves pedal efficiency by reducing play and noise.
- Easy at-home swap with basic grease and care.