Review on 🚀 Efficient Performance with Uxcell Groove Bearing 2080093 Bearings by Agustin Bush

These bearings (693ZZ (3*8*4)) were used to replace bearings in a quadcopter motor. They seem to be noisier than other camps. The replaced ones were damaged in an accident so this is an improvement over the damaged ones. Simply turning the blades by hand gives about 2 turns of the new bearings compared to about 6-8 turns of the blades on other motors. Perhaps these "roots” will become, while the rest did not need this activity. They feel solid and smooth, but I think they can be a little "tight" for a high-speed quad.