Four Piece Bicycle Ball Bearing Retainer Set With 22 Balls 40mm Outer Diameter And 33.5mm Inner Diameter Replacement Crank And Wheel Bearings For Bike Maintenance And Upgrades

Four-Piece Bicycle Ball Bearing Retainer Set, 40mm OD
✔️ Outer diameter 40mm, inner 33.5mm, 22 stainless steel balls, 4 pcs

This four-piece bicycle ball bearing retainer set contains 22 stainless steel balls and is sized for a 40mm outer diameter and 33.5mm inner diameter. It’s an ideal replacement for bicycle crank bearings and is suitable for ordinary bicycles, mountain bikes, lowrider bikes, and stretch bicycles.

✅ 4 pieces included
✅ Outer diameter: 40mm (1.57"), Inner diameter: 33.5mm (1.32"), 22 stainless steel balls
✅ Ball diameter: 4mm (0.16"), Material: stainless steel
✅ Suitable as crank bearing replacement for bicycles
✅ Check compatibility; size tolerance about 1-2 mm

💡 What is a bicycle ball bearing retainer with 40mm outer diameter and 33.5mm inner diameter used for? This handy replacement part helps restore smooth crank and wheel operation. - compatible with 33.5mm inner diameter head parts - stainless steel construction for durability - ideal for mid-axle axis bearings on racing or mountain bikes - fits standard 40mm OD bearing housings