Patent ID: 7645089

Claim:
A drive coupling hub for engagement with a shaft of a secondary power source to transfer energy from a primary driving element, comprising: a body portion having an inner periphery, said inner periphery being engageable with the shaft of the secondary power source, said body portion intended to communicate with a primary driving element to effectuate rotation thereof; at least one radially extending bore formed in said body portion, said bore having an end adjacent said inner periphery; at least one bearing within said at least one radially extending bore, said at least one bearing being located at said end adjacent said inner periphery; a separation wall disposed between said at least one bearing and said inner periphery to prevent direct contact between said at least one bearing and the drive shaft; and at least one device extending within said at least one radially extending bore and applying pressure to said at least one bearing, which applies pressure to said separation wall, and to the shaft of the secondary power source that is received within said inner periphery to effectuate constant engagement between the hub and the shaft.