12MM Bore; Shaft Collar; Steel; 28MM Outside Diameter; 11MM Width; M4 X 12 Clamp Screw Size; One Piece Split

11MM Bore; Shaft Collar; Aluminum; 28MM Outside Diameter; 11MM Width; M4 X 12 Clamp Screw Size; Two Piece Split

12MM Bore; Shaft Collar; Aluminum; 28MM Outside Diameter; 11MM Width; M4 X 12 Clamp Screw Size; Two Piece Split

15MM Bore; Shaft Collar; Aluminum; 34MM Outside Diameter; 13MM Width; M5 X 16 Clamp Screw Size; Two Piece Split

75MM Bore; Shaft Collar; Stainless Steel; 103MM Outside Diameter; 19MM Width; M8 X 25 Clamp Screw Size; One Piece Split