500Pcs Assorted Loose Bicycle Bearing Balls 1/8, 5/32, 3/16 7/32 and 1/4

Value for the money! The few I checked were on size.

Cheap and decent assortment of bearings for bikes. Really only need 2 sizes for common cup and cone bike hubs and bottom brackets. 9 * 1/4 balls per side in the rear hub, 10 * 9/10/11 rule-of-thumb. Nine 1/4 balls per side in the rear hub, 10 3/16 balls per side in the front hub, and eleven 1/4 balls per side in the bottom bracket. 3/16 balls per side in the front hub, and 11 * 1/4 balls per side in the bottom bracket. Use 1/8” and 5/32” in headsets and pedals that use loose or caged balls. They work and the price is right. I didn’t measure them and I take their hardness values at face value. (You want the balls softer than the races so the easy to replace balls wear, not the races.) Pull apart old bearings. Take out balls and probably lose some. Measure balls or just look up what is needed. Clean out old grease from races. Apply new grease to races. Place balls in grease. Reassemble bearing. Tighten preload (aka sideways tightness) until you have that magic spot between too loose/sideways play and too tight/binding. Expect to take a few tries to get it right.

easy to install

used for a bicycle rebuild project. they worked out well

The starred review ratings category warmth makes NO sense! These are ball bearings. Perfect selection for bicycle repair/refurbishing. I put new ones (18 per hub) in two 1970s Fuji wheel hubs. Other sizes would fit pedals or an older headset or ball bearing bottom bracket if I were doing those jobs. Value for money.

Item came when, as expected, and had all the sizes to repair my bike.

These are dead nuts on for size too the tenth but not hard steel. Easily dented with a hammer. Ok for projects and measurements but not going to carry fatigue load like a real hardened ball bearing.

Broke the front axle in my Alex 29er wheel so I got a new axel and these to replace the OE bearing. These bearings are high quality for the price. These should be on the shelf of anyone who rides bikes.

Works great

For the most part these bearings are great, but there are a few bearings that have tiny indents in them. Good quality otherwise. As expected for the price.