Shaft Collar, System of Measurement Inch, Shaft Locking Type - Couplings 2 Piece Clamp, Bore Type - Collars Plain Bore, Bore Dia. 3 in, Material - Collars Black Oxide 1215 Lead Free Steel, Outside Dia. 4 1/4 in, Width 7/8 in, Clearance Dia. 4.5 in, Screw…