V-rings can tolerate misalignment between the shaft and housing, i.e. deviations from the perpendicularity between the shaft and counterface of the housing. Guideline values for the maximum permissible angular misalignment are provided in the
The permissible misalignment values for the very compact VR3/VL design are appreciably lower than those for the VR1/VA and VR2/VS designs.
VR4 design V-rings have a large seal cross section and permit larger misalignments.
In applications where V-rings are not supported axially on the shaft, the maximum value in the diagram should be reduced.