Roller Chain Sprocket; 50-2 Chain; 20 Teeth; 2 Row of Teeth; Hardened Teeth; 4.321" Outside Diameter; 3.995" Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 5/8" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 50 Chain; 20 Teeth; 1 Row of Teeth; Hardened Teeth; 4.321" Outside Diameter; 3.995" Pitch Diameter; B-Hub One Side; Bushed Mount; 1610 Bushing; 5/8" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

3-7/8" Hub Diameter; Chain Coupling; Hub; Shaft; Bushed; 1/2 To 2-1/8 Bore Range; 5-3/16" Outside Diameter; 1-1/4" Length Thru Bore; 7/16" Between Shaft Ends; 60 Chain; 20 Teeth; 1-1/4" Width; 6020; Keyway; Steel

5-3/8" Hub Diameter; Chain Coupling; Hub; Shaft; Minimum Plain Bore; 1-1/2 To 3-9/16 Bore Range; 6.913" Outside Diameter; 2-5/8" Length Thru Bore; 0.59" Between Shaft Ends; 80 Chain; 20 Teeth; 2-5/8" Width; 8020; No Keyway

3-7/8" Hub Diameter; Chain Coupling; Hub; Shaft; Bushed; 1/2 To 2-1/8 Bore Range; 5.176" Outside Diameter; 1-1/4" Length Thru Bore; 0.47" Between Shaft Ends; 60 Chain; 20 Teeth; 2" Width; 6020; Keyway