Belleville spring washers type ‘A’ can be used in most light metal assemblies to provide a useful elastic spring action proportionately high with respect to the washer’s outer diameter. They can be flattened out completely when tightened, with out effect on their elasticity. Also used in certain assemblies with out effect on their elasticity. Also used in certain assemblies with a view to compensating any axial play. Belleville spring washers type ‘B’can be used with all grades of materials of bolts or screws, as well as the torques applied therewith.
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