Series of shafts and method for manufacturing the same

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 at least 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 form 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 region, 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 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 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.

A shaft for attachment in a bore of a receiving part, comprising:

• 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, a third axial region from the second end of the shaft one of (a) toothed and (b) knurled, a first axial region from the second end of the shaft, a second axial region from the second end of the shaft and a fourth axial region from the second end of the shaft having no gear teeth, the bore in the receiving part including at least three axially adjacent regions, an innermost axial region of the bore corresponding to the first axial region of 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, an outermost axial region of the bore adjacent to the middle axial region of the bore, the first axial region of the shaft including 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 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 when the shaft is pressed into the receiving part, the second axial region from the second end of the shaft 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 lass than an outer diameter of the third axial region from the second end of the shaft, the third axial region from the second end of the shaft 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.

A shaft for attachment in a bore of a receiving part, comprising:

• 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, a third axial region from the second end of the shaft at least one of (a) toothed and (b) knurled, root zones of grooves formed by gear-tooth spaces of the axial region of the first end of the shaft extending through a fourth axial region from the second end of the shaft and the third axial region from the second end of the shaft and one of (a) at least partially into a second axial region from the second end of the shaft and (b) into the second axial region from the second end of the shaft and a first axial region from the second end of the shaft, the bore in the receiving part including 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, the first axial region from the second end of the shaft including 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 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 when the shaft is pressed into the receiving part, the second axial region from the second end of the shaft 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 less than an outer diameter of the third axial region from the second end of the shaft, the third axial region from the second end of the shaft 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.

A method for manufacturing a shaft fixture including a shaft for attachment in a bore of a receiving part, the shaft including 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, a third axial region from the second end of the shaft one of (a) toothed and (b) knurled, a first axial region from the second end of the shaft, a second axial region from the second end of the shaft and a fourth axial region from the second end of the shaft having no gear teeth, the bore in the receiving part including at least three axially adjacent regions, an innermost axial region of the bore corresponding to the first axial region of 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, an outermost axial region of the bore adjacent to the middle axial region of the bore, the first axial region of the shaft including 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 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 when the shaft is pressed into the receiving part, the second axial region from the second end of the shaft 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 lass than an outer diameter of the third axial region from the second end of the shaft, the third axial region from the second end of the shaft 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, comprising:

• at least one of (a) pressing and (b) inserting the shaft into the receiving part, during the at least one of (a) the pressing and (b) the inserting, a temperature of the receiving part and a temperature of the shaft being unequal.

A method for manufacturing a shaft fixture including a shaft for attachment in a bore of a receiving part, the shaft including 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, a third axial region from the second end of the shaft at least one of (a) toothed and (b) knurled, root zones of grooves formed by gear-tooth spaces of the axial region of the first end of the shaft extending through a fourth axial region from the second end of the shaft and the third axial region from the second end of the shaft and one of (a) at least partially into a second axial region from the second end of the shaft and (b) into the second axial region from the second end of the shaft and a first axial region from the second end of the shaft, the bore in the receiving part including 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, the first axial region from the second end of the shaft including 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 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 when the shaft is pressed into the receiving part, the second axial region from the second end of the shaft 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 less than an outer diameter of the third axial region from the second end of the shaft, the third axial region from the second end of the shaft 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, comprising:

• at least one of (a) pressing and (b) inserting the shaft into the receiving part, during the at least one of (a) the pressing and (b) the inserting, a temperature of the receiving part and a temperature of the shaft being unequal.