Abstract: A modular V-belt sheave which, in a specific embodiment, has two end modules and a hub connected to at least one of the modules and may have one or more intermediate modules and the modules are secured together by a plurality of tying members extending through aligned holes in the modules, the members preferably consisting of cast metal, such as aluminum, with heads on the opposite ends of the elements. The members are cast into the aligned holes and, as the members cool, they contract, holding the modules firmly together. A hub may be used which preferably has a radial member seating between two of the modules and having a plurality of holes for alignment with the holes in the modules and for receiving the tying members so that the members will rigidly secure the modules to the radial member.

Abstract: A tapered bushing and hub assembly for mounting on shafts sheaves, gears, sprockets, couplings and similar machine elements, in which a tapered, split bushing is inserted in a tapered bore in the machine element and a plurality of lugs secured by screws onto the hub force the bushing inwardly into the tapered bore, seating the bushing into face-to-face contact with the tapered surface of the hub and contracting the bushing firmly onto the shaft. Holes for the screws are provided in the hub and are arranged parallel with the axis of the bore, and preferably extend through the hub. Each lug bears against the side of the hub and the large end of the bushing as the screws are tightened into their respective holes. When the machine element is to be removed from the shaft, a lug may be secured by the screws on the opposite side of the hub to force the bushing outwardly from the tapered bore.