TRB RC 8x16x5mm Precision Ball Bearings ABEC 3 Rubber Seals (10) 688-2RS-BU

Running four 6s and two 3s rc's means you need a lot of bearings. Quality is comparable to bigger name brands and much better priced. Will definitely buy again

Excellent price on these bearings. Easily a third of the local hardware store price and arguably better quality. Yes these are metric but they're very close to standard dimensions if your project will allow. I bought them to use as roller tips in the fingers of a steady rest on a small lathe. They will not see too awful high rpm. They ship in a little plastic case and come with a sticker, woo! They spin very smoothly and have no play between the inner and outer parts. The seals fit into place well also.

I purchased these bearings to use in a project I was working on and they are fit for use. They work, they work well, what can I say? After I had ordered these, a few later I purchase a different size for my grandson's skateboard. They worked well for him too.

Prefect fit

Purchased for use in 3d printer experiments, I would recommend these bearings, as they are smooth and feel very strong and durable. The bearings are protected by a rubber seal, so you won't have to worry about them becoming contaminated and gummed up. However, they do offer some resistance, so keep that in mind if your application is friction sensitive.