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For all springs, tolerance class h12 shall apply for the outside diameter. De. Tolerance class H12 shall apply for the inside diameter, Di.

TOLERANCES - on Thickness

In the case of Group 3 springs, the limit deviations specified apply to the reduced thickness, t'

TOLERANCES - on Free Overall Height, lo

TOLERANCES - on Spring Load (Single Disc)

The static spring load F of a single disc in the initial position (lo-s) shall be determined for a spring in the loaded state, using a suitable lubricant. The flat plates between which the spring is to be compressed shall be hardened, ground and polished.

Under normal circumtances, the values specified in the table shall apply.

To comply with the specified tolerances, it may be necessary to exceed the tolerance values specified for lo.