Lager und Lageranordnung.

摘要

A mill roll A is supported by its roll necks or stub shafts 4 on tapered roller bearings, each having several cones 32 and corresponding cups 34 and rows of tapered rollers 36 between the raceways of each cone and cup. Each bearing also has rib rings 38 located at the ends of its cups to provide surfaces against which the large diameter ends of the rollers 36 in its several sets bear. The cups and rib rings are clamped together within a chock or housing C, and they, in turn, retain the several rows of rollers. The cone raceways taper away from the roll body 2 and lie within a single conical envelope having its center along the axis of rotation for the bearing. This arrangement allows the chock C, which carries the cups, rib rings and rollers, to be passed over the cones 32 on the roll neck. The roll body 2 is ground while the roll is supported on the bearings that are within the chocks and with the bearings in a condition of preload. This eliminates practically all eccentricity, so runout or wobble is maintained at a minimum. The bearings B are also maintained under axial preload during mill operation.