Shaft-hub connections

Shaft-hub connections are a central element of drive technology that offers high safety requirements in the field of brakes, high speed stability and concentricity properties in the field of e-mobility, as well as a generally long service life in a minimal installation space and economical manufacturing processes. In addition, there are material-related issues relating to wear protection, corrosion resistance and the implementation of lightweight construction goals. Research at the IMW in the field of shaft-hub connections has been successfully dedicated to all these tasks for many decades.

  • Splined shafts, splines or profiled shafts, whatever they are called, offer an extremely wide range of applications for the reliable transmission of high torques using established economical manufacturing processes and simple assembly due to their large number of positive locking elements and simultaneously definable fit (fixed or sliding fit). The enormous variety of applications constantly gives rise to new questions, which have been and will certainly be clarified in the future with the following considerations:

    • Investigations into load distribution in the axial and circumferential direction, taking into account manufacturing deviations and crowned profiles
    • Wear behavior of flank-centered splines
    • Strength calculation of involute splined shaft connections under torsion and bending according to DIN 5466 and DIN 743, as well as with references to the FKM guideline
    • Profile optimization based on the Novikov profile
    • Profile optimization of the involute standard profile according to DIN 5480 in the root radius with compliance with component compatibility
    • Strength calculation of straight-flank spline profiles
    • Strength considerations for the involute profile according to ISO 4156 (ANSI 92.2) with extended flank angle range from 20° to 45°
    • Profile optimization potential when using wheel curves in the form of trochoids and cycloids

  • In the area of press connections, we deal with

    • weakened press-fit joints whose load-bearing capacity is generally reduced compared to the basic cylindrical joining surface due to structural notches (bores, serrations)
    • connections joined using internal high pressure, which offer enormous lightweight construction potential through the use of a hollow shaft and high cost-effectiveness with a wide variety of material combinations thanks to the deviation-tolerant joining technology
    • Knurled press-fit joints, which achieve an enormous increase in torque capacity compared to normal press-fit joints through the combination of frictional and positive locking and can also be manufactured extremely economically

Contact person

Prof. Dr.-Ing. Armin Lohrengel

Phone: +49 5323 / 72 - 2270
E-Mail: lohrengel@imw.tu-clausthal.de

Dr.-Ing. Günter Schäfer

Phone: +49 5323 / 72 - 3894
E-Mail: schaefer@imw.tu-clausthal.de