Abstract: A powertrain assembly for use in a motor vehicle powertrain system having an output shaft forming a cylindrical outer surface, a splined end, and a radial shoulder, and a CVJ assembly having an inner race, and outer race. Ball elements are provided between the inner and outer races. A seal assembly is provided having a boot with an outer lip affixed to the CVJ outer race and an inner lip forming first and second radial faces and an inside cylindrical surface. Axial insertion of the output shaft splined end into the CVJ inner race splined bore causes the boot assembly inner lip to be expanded and frictionally engage with the output shaft cylindrical outer surface and wherein the boot inner lip first and second radial faces are clamped between the inner race radial surface and the shaft radial shoulder.

Abstract: A constant velocity joint support bearing system having a bearing assembly supporting a first shaft connected to one member of the constant velocity joint. A first labyrinth seal on one axial side of the bearing assembly is formed by a shoulder that is unitary with the outer member of the constant velocity joint and by a radially inward projection on a bearing support bracket holding in place the outer race of the bearing assembly. A second labyrinth seal is formed between a cylindrical section of the bearing support bracket and an annular member that axially retains the bearing on the first shaft. Both the bearing support bracket and the annular member are formed from stamped sheet metal. The shoulder and the annular member are shaped to promote centrifugal slinging of contaminants away from the bearing assembly.