Patent ID: 7387462

Claim:
An arrangement, comprising: a series of shafts configured to attach in a bore of a receiving part, the series including at least two different sizes, each size including different variants of shafts; wherein each shaft includes at least five contiguous axial regions, an axial region of a first end of the shaft having a greater outer diameter than at least one of three axial regions of a second end of the shaft; wherein each variant includes different gear teeth in the axial region of the first end of the shaft; wherein a third axial region from the second end of the shaft is one of (a) toothed, (b) knurled and (c) milled; wherein in a first size and at least in a first variant, a first axial region from the second end of the shaft and a second axial region from the second end of the shaft do not include gear teeth; wherein in at least a second variant within the first size, root zones of grooves formed by slots of the gear teeth in the axial region of the first end of the shaft extend one of (a) at least partially into the second axial region from the second end of the shaft and (b) through the second axial region from the second end of the shaft into the first axial region from the second end of the shaft; wherein the bore in the receiving part includes at least three axially adjacent regions: an innermost axial region of the bore corresponding to the first axial region from the second end of the shaft when the shaft is fixed in the receiving part, a middle axial region of the bore corresponding to the third axial region from the second end of the shaft when the shaft is fixed in the receiving part, an outermost axial region of the bore adjacent to the middle axial region of the bore; wherein the first axial region from the second end of the shaft includes a first subregion toward the second end of the shaft and a second subregion adjacent to the first subregion, an outer diameter of the first subregion being less than or equal to an inner diameter of the innermost axial region of the bore and an outer diameter of the second subregion greater than or equal to the outer diameter of the first subregion arranged to provide a force-locked connection between the shaft and the receiving part when the shaft is pressed into the receiving part; wherein the second axial region from the second end of the shaft is contiguous to the second subregion, the third axial region from the second end of the shaft contiguous to the second axial region from the second end of the shaft, an outer diameter of the second axial region from the second end of the shaft being less than an outer diameter of the third axial region from the second end of the shaft; and wherein the third axial region from the second end of the shaft is configured to cut into the middle axial region of the bore in a form-locked manner in accordance with pressing of the shaft into the receiving part.