625ZZ 5 x 16 x 5 mm Deep Groove Ball Bearing, 10 Pcs, Metal Shielded Miniature Ball Bearings, Single Row, Fit for Skateboard Bearings, Hand Spinner, Brush Motor, Roller Skates etc. (Pack of 10)

These are almost to spec. The inside appears to be 5.1mm which creates play with a 5mm shaft. They are a bit stiff (more drag than I expected), but good none the less.

merchandise was good quality prompt and fast shipping will order from this company again

Pros:Tight tolerances, 5mm rod fits very snugly into the bearing.Nice smooth rotation, no rough spots or jitter of any kind.Cons:None...

They look like they should work ok, I bought them and decided I didn't need them so I have not tried them yet.

This product was perfect I can’t wait to start some projects. Delivery was fast And packaging was great

I received my bearings in a package marked iHomie- don’t know if this is normal but the bearings are terrible. They barely spin and aren’t the size they are described as.

I used these on my 3d printed RC. They worked great no issues.

The package I received was branded iHomie. The ID on these measure 5.13mm on average, which leaves them flapping in the breeze on a 5.00 mm shaft. The OD ranges from 15.96-16.04mm amongst the 10 pack I received, so most would press fit into a 16mm housing. This is probably fine for low speed usage, but I purchased them to replace the bearings in a Goolrc brushless RC motor. I'll toss them in the parts bin for a future project, but have to order something else that will actually fit the motor shaft.

The only issue I had with these is the packaging grease that these were slathered in when they came. Otherwise, the dimensions are accurate and the bearing rides great.