Shaft-hub connection with a spline toothing
A shaft-hub connection includes a shaft and a hub which engage with one another for conjoint rotation about an axis of rotation via a first toothing and a second toothing. The first toothing has a first toothing region and a second toothing region, wherein the first toothing region and the second toothing region are, as viewed in the circumferential direction (u), arranged offset by a dimension (d) in such a way that the first toothing region engages with the second toothing via front tooth flanks as viewed in the circumferential direction (u), and the second toothing region engages with the second toothing via rear tooth flanks as viewed in the circumferential direction (u).
1 . A shaft-hub connection, comprising:
a shaft; and
a hub,
wherein the shaft and the hub are connectable through a first toothing and a second toothing to form the shaft-hub connection such that, with the shaft and the hub connected through the first toothing and the second toothing, the shaft and the hub are conjointly rotatable about an axis of rotation,
the first toothing has a first toothing region and a second toothing region that are separated by an undercut,
the first toothing region and the second toothing region are offset by a dimension (d) in a circumferential direction (u) of the shaft-hub connection such that, with the shaft and the hub connected through the first toothing and the second toothing, the first toothing region is engaged with the second toothing through front tooth flanks of the first toothing region in the circumferential direction (u),
the second toothing region is engaged with the second toothing through rear tooth flanks of the second toothing region in the circumferential direction (u), and
an axial length of the undercut (L 4 ) in an axial direction of the shaft-hub connection divided by an axial length of the first toothing (L) in the axial direction is less than or equal to 0.33.
2 . The shaft-hub connection of claim 1 , wherein the dimension (d) is greater than 5 μm and less than half of a width of a tooth of the first toothing in the circumferential direction (u).
3 . The shaft-hub connection of claim 1 , wherein an axial length of the first toothing region (L 1 ) in an axial direction of the shaft-hub connection divided by an axial length of the first toothing (L) in the axial direction is greater than 0.5.
4 . The shaft-hub connection of claim 1 , wherein teeth of the second toothing region have a threading tip on an edge facing the first toothing region that includes a surface that is inclined in an axial direction of the shaft-hub connection.
5 . The shaft-hub connection of claim 1 wherein
the shaft has the first toothing and the hub has the second toothing, and
the first toothing includes external toothing of the shaft and the second toothing includes internal toothing of the hub, or the first toothing includes internal toothing of the shaft and the second toothing includes external toothing of the hub.
6 . The shaft-hub connection of claim 1 wherein
the hub has the first toothing and the shaft has the second toothing, and
the first toothing includes external toothing of the hub and the second toothing includes internal toothing of the shaft, or the first toothing includes internal toothing of the hub and the second toothing includes external toothing of the shaft.
7 . A motor vehicle, comprising:
a drive shaft including an axle journal; and
a wheel hub connected to the axle journal through a shaft-hub connection such that the drive shaft and wheel hub are conjointly rotatable, the shaft-hub connection including:
a shaft, and
a hub,
wherein the shaft and the hub are connected by engagement through a first toothing and a second toothing to form the shaft-hub connection such that the shaft and the hub are conjointly rotatable about an axis of rotation,
the first toothing has a first toothing region and a second toothing region that are separated by an undercut,
the first toothing region and the second toothing region are offset by a dimension (d) in a circumferential direction (u) of the shaft-hub connection such that the first toothing region is engaged with the second toothing through front tooth flanks of the first toothing region in the circumferential direction (u),
the second toothing region is engaged with the second toothing through rear tooth flanks of the second toothing region in the circumferential direction (u), and
an axial length of the undercut (L 4 ) in an axial direction of the shaft-hub connection divided by an axial length of the first toothing (L) in the axial direction is less than or equal to 0.33.
8 . The motor vehicle of claim 7 , wherein the dimension (d) is greater than 5 μm and less than half of a width of a tooth of the first toothing in the circumferential direction (u).
9 . The motor vehicle of claim 7 , wherein an axial length of the first toothing region (L 1 ) in an axial direction of the shaft-hub connection divided by an axial length of the first toothing (L) in the axial direction is greater than 0.5.
10 . The motor vehicle of claim 7 , wherein teeth of the second toothing region have a threading tip on an edge facing the first toothing region that includes a surface that is inclined in an axial direction of the shaft-hub connection.
11 . The motor vehicle of claim 7 wherein
the shaft has the first toothing and the hub has the second toothing, and
the first toothing includes external toothing of the shaft and the second toothing includes internal toothing of the hub, or the first toothing includes internal toothing of the shaft and the second toothing includes external toothing of the hub.
12 . The motor vehicle of claim 7 wherein
the hub has the first toothing and the shaft has the second toothing, and
the first toothing includes external toothing of the hub and the second toothing includes internal toothing of the shaft, or the first toothing includes internal toothing of the hub and the second toothing includes external toothing of the shaft.