Roller Chain Sprocket; 7/8" Bore; 40 Chain; 21 Teeth; 1 Row of Teeth; No Hardened Teeth; 3.618" Outside Diameter; 3.355" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Roller Chain Sprocket; 40 Chain; 18 Teeth; 1 Row of Teeth; Hardened Teeth; 3.136" Outside Diameter; 2.879" Pitch Diameter; B-Hub One Side; Bushed Mount; 1210 Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Chain Link; 40 Chain Size; Spring Clip; 1/2" Chain Pitch; Standard Chain Series; 1 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 Sprocket; 1" Bore; 40 Chain; 16 Teeth; 1 Row of Teeth; No Hardened Teeth; 2.814" Outside Diameter; 2-9/16" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Roller Chain; 40 Chain Size; Riveted; 1/2" Chain Pitch; Standard Chain Series; 1 Strand; Carbon Steel; ANSI; 0.312" Roller Diameter; 5/16" Roller Width; 0.06" Plate Thickness; 0.457" Plate Height; Curved; 5/32" Pin Diameter