Purpose and technical role of DIN 6319 washers
The DIN 6319 standard defines the geometric characteristics, materials, and design of spherical and conical washers. These fasteners are designed to compensate for axial misalignment and distribute clamping forces in assemblies where mating surfaces are not parallel. The combined use of a spherical and a conical washer allows for the adjustment of the fastener (bolt or stud) with an angular deviation of up to 3°.
For use in clamping devices with longitudinal slots (according to DIN 6314, 6315, 6316 standards), only form G conical washers are used. In turn, form D conical washers are intended for standard bolted connections and are not recommended for use in slots with longitudinal displacement.
Classification of washers according to DIN 6319:
Form C – Spherical washer, providing a tight fit during angular deviations.
Form D and G – Conical washer, the mating part for creating a self-centering assembly.
Technical manufacturing materials
- Form C, D: unalloyed steel with high strength characteristics.
- Form G: heat-treated steel to increase wear resistance and hardness.
EV Group China specialists note: the selection of a specific steel grade for the production of washers remains the prerogative of the manufacturer within the framework of ensuring the specified mechanical properties of the component.