Abstract: The invention relates to a lubricating device for a variable speed transmission with an integrated interaxle differential for motor vehicles, on the shaft of the transmission there being at least one synchronizer clutch for shifting one or two lower (slower) gear ratios and the interaxle differential, and the synchronizer clutch and the interaxle differential being supplied with lubricating oil by way of a central longitudinal channel in the shaft and by way of radial channels and/or radial gaps branching off from it. For improved adaptation of the lubricating oil supply in defined driving states of the motor vehicle, there are means which are integrated into the longitudinal channel and which change the lubricating oil supply to the synchronizer clutch and the interaxle differential as a function of the driving speed.

Abstract: A device for axially preloading a machine element that is arranged in a housing, with an annular steel spring that has an open hollow profile in cross-section, on which at least on one side is molded an annular collar that rests on the machine element and that has an axial contact surface, the steel spring being preloaded via a safety element against the machine element with a force that exceeds the operating force that occurs. A structurally simple device that ensures high preloading forces with advantageous tolerance compensation is achieved by the steel spring with an axisymmetrical, semi-circular section with an essentially uniform radius R1 undergoing transition indirectly or directly via a smaller radius R2 into the annular collar.

Abstract: The invention relates to a lubricating device for a variable speed transmission with an integrated interaxle differential for motor vehicles, on the shaft of the transmission there being at least one synchronizer clutch for shifting one or two lower (slower) gear ratios and the interaxle differential, and the synchronizer clutch and the interaxle differential being supplied with lubricating oil by way of a central longitudinal channel in the shaft and by way of radial channels and/or radial gaps branching off from it. For improved adaptation of the lubricating oil supply in defined driving states of the motor vehicle, there are means which are integrated into the longitudinal channel and which change the lubricating oil supply to the synchronizer clutch and the interaxle differential as a function of the driving speed.

Abstract: The invention relates to a device for axially preloading a machine element that is arranged in a housing, with an annular steel spring that has an open hollow profile in cross-section, on which at least on one side is molded an annular collar that rests on the machine element and that has an axial contact surface, the steel spring being preloaded via a safety element against the machine element with a force that exceeds the operating force that occurs. A structurally simple device that ensures high preloading forces with advantageous tolerance compensation is achieved by the steel spring with an axisymmetrical, semi-circular section with an essentially uniform radius R1 undergoing transition indirectly or directly via a smaller radius R2 into the annular collar.