Measurements!!! Please A.S.A.P.!!!

Can some one tell me the measurements of a size C bearing seat, and the size of hat pads?

Basically if you own a caliper, can you get me the measurements?

like in diameter?

All measurements it takes to recreate this accurately (lets pretend the big circle is a half of a yoyo)
http://img13.imageshack.us/img13/9846/83869890.jpg