16A(80)-2F8 big roller double plus chain

16A(80)-2F8 big roller double plus chain 

Pitch: 25.4mm

small Roller diameter: 15.88mm

Big roller diameter: 35mm

Pin diameter: 7.92mm

Plate thickness: 3.25mm

The minimum tensile strength is 133.4KN after slowly continues add strength.

detail picture as following:

Material and treatment :

Inner and out plate: 40Mn  Quenching treatment   HRC 40--48

Pin : 30CrMnTi   Carbon-Nitriding treament: HRA>=79

Bush: 10# steel  Carbon-Nitriding treament: HRA76--79

small roller and big middle roller:  10# steel  Carbon-Nitriding treatment  HRA70--76