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

Chain Coupling; Cover; Plastic; 4" Outside Diameter; 2-5/16" Width; 4016 Coupling Size; 5000 Maximum Speed (RPM)

Chain Coupling; Cover; Plastic; 6-3/8" Outside Diameter; 3-1/16" Width; 6020 Coupling Size; 2500 Maximum Speed (RPM)

Chain Coupling; Cover; Plastic; 6-3/8" Outside Diameter; 3-1/16" Width; 6018 Coupling Size; 3000 Maximum Speed (RPM)

Chain Coupling; Cover; Aluminum; 10-1/8" Outside Diameter; 5.25" Width; 10020 Coupling Size; 1800 Maximum Speed (RPM)