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

Roller Chain Sprocket; 60 Chain; 21 Teeth; 1 Row of Teeth; No Hardened Teeth; 5.426" Outside Diameter; 5.033" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 3/4" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

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