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

3/8-16 Bore Thread; Shaft Collar; Stainless Steel; 7/8" Outside Diameter; 3/8" Width; 6-32 X 3/8 Clamp Screw Size; One Piece Split Threaded

7/16" Bore; Shaft Collar; Steel; 7/8" Outside Diameter; 7/16" Width; One Set Screw; 1/4-20 X 1/4 Set Screw Size; One Piece Solid

3/4-10 Bore Thread; Shaft Collar; Steel; 1-1/2" Outside Diameter; 1/2" Width; 1/4-28 X 5/8 Clamp Screw Size; One Piece Split Threaded