Roller Chains by PGN Bearings. Details:#25 Roller Chain ANSI Chain No.: #25 Pitch : 0.25 inch (6.350 mm) Roller Diameter (d1 max): 0.130 inch (3.30 mm) Width Between Inner Plates (b1 min): 0.125 inch (3.18 mm) Pin Diameter (d2 max): 0.091 inch (2.31 mm) Pin Lenght (L max): 0.311 inch (7.90 mm) Pin Lenght (Lc max): 0.331 inch (8.40 mm) Inner Plate Depth (h2 max): 0.236 inch (6.0 mm) Plate Thickness (T max): 0.031 inch (0.80 mm) Ultimate Tensile Strenght (Q min): 3.50/795 kN/LB Average Tensile Strenght (Qo): 4.6 kN Weight (q): 0.100 lb/ft (0.

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