apertures 112 and presents a radial face for mounting the rotor 14 thereon an inner raised lip 114 is provided on the inner periphery of the flange 110 the same rotor 14 shown in fig7 is used with this embodiment as seen in fig2 the rotor 14 is positioned on the hub with the tabs 36 overlapping the rotor support flange 110 the tabs 36 are positioned with the assistance of the raised lip 114 a series of bobbins 120 seen in detail in fig2 and 24 are provided between the tabs 36 positioned over the apertures 112 each bobbin 120 is trapezoidal in shape with side walls 122 and a through hole 124 similar in shape and function to the bobbin tabs 24 of the first embodiment the bobbins 120 are preferably made of a strong corrosion resistant material such as stainless steel a top plate 128 seen in detail in fig2 is formed as an integral ring with the inner periphery 130 defining a tone ring having a series of radial teeth 132 or peaks and valleys that may be detected by an abs sensor as is known the top plate 128 has spaced indents 134 formed on the outer periphery and matching slots 136 formed in the central portion a series of spaced apertures 138 are also formed therethrough of course the top plate.