uxcell 6702-2RS Deep Groove Ball Bearings Z2 15mm x 21mm x 4mm Double Sealed Chrome Steel 10pcs

I am buying these for a project im working on for my engineering degree. I had bought 2 bearing from another supplier that were a tad bit more expensive. Those were super great, unfortunately these have higher friction and can easily notice it. They get the job done but was hoping for these bearing to be of the same quality as the previous 2 i bout from a different seller. Id still buy more just because these come out being around 5 dollars cheaper.

QUALITY PRODUCT. Value for money. Excellent supplier. Bought to replace bearings on Cannondale CAAD 12 BB30. Installed, no creaking, did 100 km straight from box. Highly recommended

These were the only sealed bearings I could find that were the right size for me to try and retrofit some failed axle bearings on my son's scooter with. They happened to seat beautifully as a retrofit, and they roll nice and smooth for ABEC-1 rated bearings. Great purchase!

Good quality

These work great. As advertised and run smooth. I would buy again from both vendor and product.

These are nice bearings. Clean. Packed in their own container. Smooth rolling. Great price.

If you like your balls rolled this is the place! The roll for hours

These bearings work for an FSA crank gossamer with a bottom bracket that is BB 30. Just for those that wanted to know if this would work it does. The longevity of these bearings I don't know but where I am right now I don't see them lasting long considering the type of mud that is in Arizona. But most of the time it's dry.

a perfect fit, after ordering 3 time base on same spect, the first to deliver the proper parts, A BIG thank... Good day

Replacement bearings for my Lynskey gravel bike bottom bracket. Cheap like borscht.

Fits my Maxx perfectly at a fraction of the cost!