Patent ID: 8186903
Filing Date: 2012-05-29
Classification: F01D,F05B,F05D,Y10T

Abstract:
1. A fastener assembly comprising: a hub having an internal bore having a proximal end and a distal end and formed with axially extending internal splines disposed between the proximal and distal ends and a shoulder disposed at the distal end, the bore being formed with an internal keyway axially extending from the proximal end through the shoulder; a hollow shaft having an internal bore, an outer surface of the shaft formed with axially extending external splines disposed adjacent a distal end of the shaft for matingly engaging with the internal splines of the hub, and a screw threaded portion at the distal end of the shaft; and a nut having an axial length sized to enable the nut to pass sideways completely through the keyway from the proximal end of the hub through the shoulder prior to insertion of the shaft into the bore of the hub; wherein when the shaft is received within the bore of the hub such that the external splines of the shaft completely engage with the internal splines of the hub, the nut is axially aligned with and screwed onto the threaded portion of the shaft such that the nut engages the shoulder on the hub thereby locking together the hub and the shaft; wherein the internal bore of the shaft is sized to receive a tool which extends through the internal bore of the shaft to axially align and rotate the nut, so as to permit assembly when the distal end of the shaft is not directly accessible to allow the nut to be tightened.