2.030" hole diameter 3.000" outside diameter 0.125" material thickness 12 0.208 in. min 0.214 in. max equally spaced holes located on a 2.500 in. circe key
0.516" hole diameter 1.120" outside diameter 0.200" material thickness external prebent key has one HOLE0.050 to 0.060 in.long on a 45 deg.angle; two internal keyways