1-11/16" Bore; Shaft Collar; Aluminum; 3" Outside Diameter; 5/8" Width; 5/16-24 X 1 Clamp Screw Size; One Piece Split Recessed Screw

1/2" Bore; Shaft Collar; Stainless Steel; 1-1/4" Outside Diameter; 3/8" Width; 8-32 X 1/2 Clamp Screw Size; Two Piece Split Recessed Screw

1" Bore; Shaft Collar; Steel; 1-3/4" Outside Diameter; 1/2" Width; 1/4-28 X 5/8 Clamp Screw Size; Two Piece Split

1-1/4" Bore; Shaft Collar; Steel; 2-1/4" Outside Diameter; 1/2" Width; 1/4-28 X 3/4 Clamp Screw Size; Two Piece Split Recessed Screw

1-5/16" Bore; Shaft Collar; Steel; 2-1/4" Outside Diameter; 9/16" Width; 1/4-28 X 3/4 Clamp Screw Size; Two Piece Split