10 PCS 6203-2RS Double Rubber Seal Deep Groove Ball Bearings 17x40x12mm, Pre-Iubricated for High RPM, Stable Performance and Cost Effective 6203-RS Bearings.

THEY FIT LIKE THEY SHOULD !! GOOD BUY !!!

Performance is just as good as from your local dealer!! 10/10 recommend

The 10 Pack 6201-2RS Double Rubber Seal Deep Groove Ball Bearings 12x32x10mm are fantastic ball bearings.They're made of high quality material, roll smooth as butter, and are impressively large! These are definitely overkill for my DIY's but man are they fun to use, and so strong!Would purchase again!

When I spin the bearings they feel like there's not a lot of grease inside them. Not really rough or noisy but just dry sounding. I only needed a couple so I might pull off one of the rubber seals and see just how much is in it. I know that things like angle grinders sold by the national tool store that sells mostly Chinese tools often need to be pulled apart and packed with more grease. That could be the case with these.So far the bearings are working just fine. I had a 3/4hp electric motor that was in a flood. Both bearings were destroyed so I replaced them. Not wanting to spend much money not knowing if the motor could be salvaged I got these to test. Once installed they seem to spin just fine. I have plenty of spares so I can try to add grease to the next set if the first two don't last.Other than the grease they seem to be made very accurately. The pressed onto the motor shaft just as tight as the old ones came off. The fit into the end caps nice and snuggly but not requiring too much force that would have damaged them. I was able to get the motor running so I will be able to find out how long the bearings will last.

I know I checked the measurements before ordering, but these are a lot bigger than I imagined. I needed all of these to build up some trucks for a CNC. The fact that these are so large was a concern initially, but I managed to tweak my design and make these work. Their rolling action is very smooth and quiet. The fact that they are double sealed will keep any dust and debris from clogging the bearings. I think the larger size is a benefit for what I am making because it feels very stable.Highly recommended!

I like these come pre-lubricated, so I could just install them. I feel like the rubber seals will keep out dirt, and give these a longer life. I replaced some inferior ball bearings that wore out quickly with these, and these work a lot better.

Bearings flew apart after 10 minutes of operation on 42 inch yardmachine mower bearings are garbage.

I only used these for a small project so no heavy loads have been applied. However, they operate very well with no resistance and to turning.They came in a nice plastic container with a matching lid so keeping unused ones stored is easy and they stay clean.

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