pitch: 19.05mm
Roller diameter: 11.91mm
Pin diameter: 7.92mm
Plate height: 18mm
Plate thickness: 3.25mm
Material and treatment:
Inner plate and out plate: 40Mn Quenching treatment HRC 40--48
Pin: 30CRMnTi Carbon-Nitriding Treatment HRN-15≧88.9
Bush: 20Mn Carbon-Nitriding treatment HRA 76--79
Roller: C35 Quenching treatment