Roller Chain Sprocket; 40 Chain; 27 Teeth; 1 Row of Teeth; No Hardened Teeth; 4-37/64" Outside Diameter; 4.307" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Chain Link; 40 Chain Size; Cottered; 1/2" Chain Pitch; Standard Chain Series; 1 Strand; Dacromet Plated Steel; ANSI; 5/16" Roller Diameter; 0.309" Roller Width; 0.059" Plate Thickness; 0.472" Plate Height; Curved; 5/32" Pin Diameter

Roller Chain Sprocket; 40 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 3.618" Outside Diameter; 3.355" Pitch Diameter; A-Double Single; Bushed Mount; 1615 Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Chain Link; 40 Chain Size; Cottered; 1/2" Chain Pitch; Hollow Pin Chain Series; 1 Strand; 304 Stainless Steel; ANSI; 5/16" Roller Diameter; 0.309" Roller Width; 0.059" Plate Thickness; 0.472" Plate Height; Curved; 5/32" Pin Diameter

Roller Chain Sprocket; 40 Chain; 24 Teeth; 1 Row of Teeth; Hardened Teeth; 4.098" Outside Diameter; 3.831" Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material