Shaft Collar; 5/8" Bore; Steel; 1-5/16" Outside Diameter; 7/16" Width; 10-32 X 1/2 Clamp Screw Size; One Piece Split

Shaft Collar; 1-5/8" Bore; Steel; 2-5/8" Outside Diameter; 11/16" Width; 5/16-24 X 1 Clamp Screw Size; Two Piece Split

Shaft Collar; 1-7/8" Bore; Steel; 2-7/8" Outside Diameter; 11/16" Width; 5/16-24 X 1 Clamp Screw Size; Two Piece Split

Shaft Collar; 2" Bore; Steel; 3" Outside Diameter; 11/16" Width; 5/16-24 X 1 Clamp Screw Size; Two Piece Split

Shaft Collar; 2-3/4" Bore; Steel; 4" Outside Diameter; 1-1/8" Width; One Set Screw; 1/2-13 X 1/2 Set Screw Size; One Piece Solid