Sackorange 10 Pack R8-2RS Double Rubber Sealed Roller Ball Bearing 1/2 Inch Bore 1/2 x 1-1/8 x 5/16 Inch ABEC3 Precision Bearing for Electric Motor, Wheels, Home Appliances, Garden Machinery

These are very cheap made bearing and will not hold up under a lot of pressure if youre looking for a high stressed bearing keep looking but, if not they will work for small projects however they do require additional grease, a simple fix but expect them to be slightly stiff until additional grease is added, over all not bad for the price

Very flimsy. Plus they glad as them as available in 2 days, then report they cant ship for 4 more days while theyre adopted in from China. Since they are flagged in the store as ready to ship you cant cancel them. Avoid at all costs. But from a respectable supplier. The ones I bought failed under slight load.

Had a hard time finding these for the wheels on my wheel chair. Should have gone to Amazon first! Installing them was easy and they work great.

Good bearings for the price, I Designed a cable carrier and used these as rollers. Worked great

Havent used these yet as I bought them to build a roller for my mower deck but seem to be okay.

They’re bearings and they fit. What more do I say?

didnt last 20 days in electric motor not c3 not quality only buy japan bearings China Junk

Got for a SSR 50cc dirt bike and they were slightly too big for the bolt and the wheel they were supposed to go into. I had to get pretty creative but I got them in and Im glad there was 10 of them because I damaged three or four of them trying to install where they didnt belong . Whats installed and rigged up worked great very happy with product and price

Good

Sorry guys, I bought 30 of these for a heavy slide out drawer. Theyre nowhere close to 0.500 internal diameter. I opened one ten pack to find ID OF 0.0472 and an OD of 1.102! Coincidentally exactly 12mm x 28mm. No way in Christmas are they going on a 1/2 shaft. Infuriating.