Just to either throw more light, or confuse you further. My SKF Automotive catalogue of 1985 says that you can interchange 09067 and 09074 cones with 09194, 09195 and 09196 cups. 09194 has a greater radius on the outer "inside" face. I would not feel happy about swapping about between manufacturers, though." Know thy Beast" covers the various bearings in the "Wheels" chapter. Be manly, bear up and play the game, Bob!