Part Information
Steel, mil-s-6709, black oxide coated fw4084, bell helicopter co, casehardened shaft ends and flanges, core rockwell hardness rating c scale 32 to 36, webbed style, protruding hubs equal lg, spurgear data, 2.798 in. Min, 2.800 in. Maximum od, 0.280 in. Nom face w, 26 teeth, 0.31416 in. Circular pitch, 2.600 in. Pitch dia, 20 degrees pressure angle, lightening hole data, 6 lightening holes 0.370 in. Min, 0.380 in. Maximum diameter equally spaced on 1.330 in. Diameter bolt circle, shaft data identical ends, 1.480 in. Nom o/a lg, 0.340 in. Nom lg from flange face to shaft ends, 0.5904 in. Min, 0.5909 in. Maximum shaft od, 0.750 in. Nom flange od, 0.080 in. Nom flange w, 0.255 in. Min, 0.265 in. Maximum distance from flange outside face to gear face, 0.380 in. Nom id straight bore, 0.470 in. Diameter by 60 degrees countersink both ends