These are high quality radial bearings, meant for continuous use so they will last longer than cheap bearings. Ideal for use in your CNC project or robot.

You can now roll around smoothly with these radial bearings. They are good for supporting a rotating shaft or as a wheel hub. 

They are pre-greased and shielded so they will not get clogged easily and will last longer

Outer diameter:  22mm

Inner diameter:   8mm

Width:                  7mm