Bike Crank Ball Bearings 3 Sixteenth Inch 4 Mm Size, 20 Balls, 10 Pcs Replacement Bottom Bracket Bearings Kit For DIY Bike Wheel Frame Repair, Durable Precision Set For Smooth Pedaling

3/16 Inch Bike Crank Bearings - 10 Pack Bottom Bracket Kit
✔️ 10 pcs, 3/16 Inch (4mm) ball bearings, OD 38mm, ID 24mm

These bike crank bearings replace bearings in a bike's axle and wheel frame. They’re commonly used in DIY bike maintenance and repairs to refresh bottom brackets and keep pedaling smooth on mountain and road bikes.

✅ 10 pieces per kit for convenient replacement
✅ Ball diameter 4mm (3/16 Inch) matches standard bearings
✅ Outer diameter 38mm and inner diameter 24mm fit typical cranks
✅ Metal, rust-resistant design for durability and long service life
✅ Suitable for repairing or upgrading mountain bike bottom brackets and wheel frame bearings

💡 What is a crank bearing kit used for in bicycle maintenance and repair? This handy kit is designed to refresh worn bearings in crank axles and wheel frames, helping maintain smooth operation and extend component life.

- bottom bracket bearing replacement for MTB and road bikes - DIY bike maintenance and upgrades - compatible with 3/16 Inch (4mm) bearings - improves pedaling feel and bearing life