According to CZ Standard
TRADE MARK CZ | PITCH | INSIDE WIDTH | ROLLER DIAMETER | HOLLOW PIN INSIDE DIAMETER | PIN LENGTH | INNER PLATE WIDTH | INNER PLATE THICKNESS | OUTER PLATE THICKNESS | WEIGHT | BREAKING LOAD | CONNECTING ELEMENTS | | | p | b1(min) | d1(max) | d7(min) | b4(max) | h2(max) | T1 | T2 | q | FB(min) | A | B | | mm | mm | mm | mm | mm | mm | mm | mm | kg/m | N | | 12 B-1 | 19,05 | 11,68 | 12,07 | 4,10 | 22,30 | 16,10 | 1,80 | 1,80 | 1,09 | 21 700 |  |  | CONNECTING ELEMENTS  |  | | B | A | |