3m Fiber Disc Pad Hub,4 1-2 in Dia,Black 45190

Shaft Collar, System of Measurement Inch, Bore Type Round, Bore Diameter 2 in, Bore Thread Size Not Applicable, Collar Outside Diameter 3 in, Inside Height to Flat Not Applicable, Clearance Diameter 3.31 in, Collar Width 11/16 in, Collar Material Carbon Steel, Keyway Width Not Applicable, Collar Material Grade 1211, Keyway Depth Not Applicable, Thread Direction Not Applicable, Center to Lever Top Not Applicable, Collar Construction 1-Piece, Screw Material Carbon Steel