3/4" Belt Width; 3/8 Inch Belt Pitch; L Belt Style; 21 Teeth; 1" Face Width; Rough Bore; 2.73" Flange OD; 2.477" Outside Diameter; 2.507" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore; 1-1/4" Max B

1/2" Belt Width; 3/8 Inch Belt Pitch; L Belt Style; 21 Teeth; 3/4" Face Width; Rough Bore; 2.73" Flange OD; 2.477" Outside Diameter; 2.507" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore; 1-1/4" Max Bore

3" Belt Width; 1/2 Inch Belt Pitch; H Belt Style; 21 Teeth; 3-3/8" Face Width; Rough Bore; 3-5/8" Flange OD; 3.288" Outside Diameter; 3.342" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore; 1-11/16"

Roller Chain Sprocket; 80-2 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 7.235" Outside Diameter; 6.71" Pitch Diameter; B-Hub One Side; Bushed Mount; 3020 Bushing; 1" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Roller Chain Sprocket; 50 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 4.522" Outside Diameter; 4.194" Pitch Diameter; A-Double Single; Bushed Mount; 2012 Bushing; 5/8" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material