Shaft Collar, System of Measurement Inch, Shaft Locking Type - Couplings 2 Piece Clamp, Bore Type - Collars Plain Bore, Bore Dia. 1 7/16 in, Material - Collars Black Oxide 1215 Lead Free Steel, Outside Dia. 2 1/4 in, Width 9/16 in, Clearance Dia. 2.437…