10MM Bore; Shaft Collar; Steel; 25.4MM Outside Diameter; 9MM Width; M3 X 10 Clamp Screw Size; One Piece Split

1/2-20 Bore Thread; Shaft Collar; Steel; 1-1/8" Outside Diameter; 13/32" Width; 8-32 X 1/2 Clamp Screw Size; One Piece Split Threaded

5/8-18 Bore Thread; Shaft Collar; Steel; 1-5/16" Outside Diameter; 7/16" Width; 10-32 X 1/2 Clamp Screw Size; One Piece Split Threaded

1-1/2" Bore; Shaft Collar; Steel; 2-3/8" Outside Diameter; 9/16" Width; 1/4-28 X 3/4 Clamp Screw Size; One Piece Split

1-9/16" Bore; Shaft Collar; Steel; 2-3/8" Outside Diameter; 9/16" Width; 1/4-28 X 3/4 Clamp Screw Size; One Piece Split