Цепь М56-2-125-1

Engineering drawing of a roller chain (M56-2-125-1) with top and side views, showing pitches and diameters: pitch 125 mm, roller Ø21 mm, inner plate width 23 mm, shaft Ø10–? (d1=10 mm), plate height 30 mm, plate thickness 4 mm; weight 2.85 kg/m.