Chain Coupling; Cover; Aluminum; 5-1/8" Outside Diameter; 2-3/8" Width; 5016 | 5018 Coupling Size; 4000 Maximum Speed (RPM)

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

Chain Hub; Chain Size 40; 16 Number of Teeth

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

3-1/2" Hub Diameter; Chain Coupling; Hub; Shaft; Minimum Plain Bore; 1 To 2-7/16 Bore Range; 4.7" Outside Diameter; 1-7/8" Length Thru Bore; 0.47" Between Shaft Ends; 60 Chain; 18 Teeth; 1-7/8" Width; 6018; No Keyway