Importance

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Abstract

A speed sensing hub unit comprising an axial shaft extending from a constant velocity joint having a male spline, a cylindrical hub having a first flange on an outer peripheral face thereof for supporting a wheel and a female spline on an inner peripheral face thereof which engages with the male spline, an inner ring fitted onto the axial shaft and having a second inner ring raceway, a first nut which threads onto the axial shaft to clampingly hold the inner ring between itself and the constant velocity joint, which has at least an inner end face formed with a plurality of axial holes or slots-and-ridges, a sensor rotor surrounding the first nut, an outer ring formed with a pair of outer ring raceways corresponding to the first and second inner ring raceways, and a second flange for attachment to a suspension unit, a speed sensor facing to the the sensor rotor; and a plurality of rolling bodies between the first and second inner ring raceways and the pair of outer ring raceways.

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First Claim