How to grease a sealed bearing of a bmx,mtb,and skateboard and other bearings

I make this video to show how to grease a sealed bearing
How to grease a sealed bearing of a bmx,mtb,and skateboard and other bearings
How to grease a sealed bearing of a bmx,mtb,and skateboard and other bearings
How to grease a sealed bearing of a bmx,mtb,and skateboard and other bearings

bearings