Patent ID: 7955020

Claim:
A form fitting hub-shaft connection comprising: a hub and a shaft, each having splines defined by flanks which are structured and arranged as opposing flanks, the hub and shaft defining a groove profile having a groove profile height; at least one of the hub and the shaft having a thin wall hollow profile which is internally and externally splined such that a wall thickness of the thin wall hollow profile in the at least one of the hub and the shaft is smaller than the groove profile height; and at least one of the opposing flanks is one of curved and arc-shaped along its length in cross section, such that a varying play along the at least one of the opposing flanks exists between these opposing flanks along their lengths in cross section, wherein the at least one of the opposing flanks of the at least one of the hub and the shaft having the thin wall hollow profile is elastically deformable upon at least one of an increasing rotational speed and an increasing load, to increase a contact length along its length in cross section and to increase contact area between the opposing flanks.