Patent ID: 9568037
Date: 2017-02-14
CPC Classifications: F16B,F16H

Claim:
1. A mounting assembly comprising: a machine element, having a hub or nut, and having an axial central bore having a longitudinal bore axis, wherein the central bore is uniformly threaded with symmetrical, substantially V-shaped bore threading, comprising multiple bore threads, wherein each bore thread uniformly has a bore thread apex formed at an end of two sides of each thread, each side disposed at a bore thread angle with respect to the longitudinal bore axis; a substantially cylindrical or tubular shaft; a substantially tubular sleeve, having a proximal end and a distal end, and having a longitudinal sleeve axis and a longitudinal sleeve split, and having an inner sleeve surface and an outer sleeve surface, wherein the inner sleeve surface is dimensioned and configured to slidably fit over the shaft when the sleeve is uncompressed, and wherein the outer sleeve surface contains asymmetrical sleeve threading, which is dimensioned and configured to be threaded into the central bore, and wherein the sleeve threading comprises multiple sleeve threads, and wherein each sleeve thread uniformly has a sleeve thread apex, bounded on either side by an inside slope and an outside slope, and wherein the outside slope is steeper than the inside slope, and wherein the outside slope slopes at an outside slope angle, relative to the longitudinal sleeve axis, equal to the bore thread angle; wherein the mounting assembly is provisionally assembled with the split sleeve coaxially positioned on the shaft and with the split sleeve threaded into the central bore so that the outside slopes of the sleeve threads engage the bore thread apexes, and wherein the mounting assembly is completed with the hub or nut of the machine element torqued so that the bore threads slide against the inside slopes of the sleeve threads, thereby generating a radial force that contracts the sleeve split, causing the split sleeve to grip the shaft tightly and causing the machine element to move in common with the shaft.