Ive been cleaning my garage and came across lots of B-series bearings that are stock.Alot of them dont have the color paint on them.Is there a Code or number on it to tell me if it was a Green,Red,Black,Yellow bearing?? I also have a digital caliper and is there certain thickness in the colored bearings???I want to save these for future use..

 

You "can" measure them but frankly used bearings aren't exactly what you want to use...

Dial caliper would not be able to tell which is which though you'd need a micrometer.