Patent ID: 7874760
Filing Date: 2011-01-25
Classification: F16D,Y10T

Abstract:
1. A groove profile for a positive hub-shaft connection comprising: a hub having a plurality of grooves with an essentially quadrilateral groove cross section; a shaft having a plurality of grooves with an essentially quadrilateral groove cross section; at least one rib radially projecting and unitarily formed from one of the grooves of the hub or shaft towards one of the grooves of the other of the hub or shaft; a radially inward surface of each groove of the hub forms a hub groove head and a radially outward surface of each groove of the hub forms a hub groove root; and a radially inward surface of each groove of the shaft forms a shaft groove root and a radially outward surface of each groove of the shaft forms a shaft groove head, wherein the at least one rib projects radially from one of the hub groove head, the hub groove root, the shaft groove head, and the shaft groove root, wherein the hub groove roots and the hub groove heads of the plurality of grooves of the hub and the shaft groove roots and the shaft groove heads of the plurality of grooves of the shaft are each substantially flat, and wherein each one of the hub and the shaft is a thin-walled hollow profile which is internally and externally splined.