Roller Chain Sprocket; 40-3 Chain; 18 Teeth; 3 Row of Teeth; Hardened Teeth; 3.136" Outside Diameter; 2.879" Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 40-3 Chain; 20 Teeth; 3 Row of Teeth; Hardened Teeth; 3.457" Outside Diameter; 3.196" Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Roller Chain; 40-3 Chain Size; Riveted; 1/2" Chain Pitch; Standard Chain Series; 3 Strand; Carbon Steel; ANSI; 0.312" Roller Diameter; 0.312" Roller Width; 0.06" Plate Thickness; 0.472" Plate Height; Curved; 5/32" Pin Diameter

Roller Chain; 40-3 Chain Size; Riveted; 1/2" Chain Pitch; Standard Chain Series; 3 Strand; Zinc Aluminum Plated Steel; ANSI; 5/16" Roller Diameter; 5/16" Roller Width; 0.06" Plate Thickness; 0.472" Plate Height; Curved; 5/32" Pin Diameter

Roller Chain Sprocket; 40-3 Chain; 12 Teeth; 3 Row of Teeth; Hardened Teeth; 2.166" Outside Diameter; 1.932" Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material