uxcell 6809ZZ Deep Groove Ball Bearings Z2 45mm x 58mm x 7mm Double Shielded Chrome Steel 2pcs

I’ll be honest and say these were not at all the size I needed, but I kept em just incase I wanted to make a different project. Really smooth and good quality. I think they’d be awesome if you actually need this size lol

Perfect

I needed a replacement bearing for the Black Label E90 electric scooter as for unknown reason this ball bearing seized and the scooter was going slowly and made a lot of whining noises.I thought this might be hard to find and Razor for sure does not offer these kind of spare parts - only the complete wheel with motor, which almost cost as much as a brnad new scooter.This 45 x 58 x 7 mm ball bearing fits perfectly on the motor side and now we can use the scooter again!

Very accurate dimensions, good quality materials, smooth operation. Sticks well to other materials like plastic or wood with the right adhesive. Not much more to say about ball bearings

I was kind of skeptical about the quality of these bearings. But surprisingly they feel really good for the price especially since you get 2 for $10.Really smooth operation which is definitely something I want since I'm using this for a robotics project.

The inner diameter of the 15mm bearings are not 15mm. They are 14.67mm making them useless.

can't rotate at all