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MESYS Calculation Software

The surface roughness of the shaft and the housing is only used for the calculation of the interference fit. The effective interference of the parts is reduced by 0.4Rz according (DIN 7190-1, 2017). In previous versions, a reduction of 0.8Rz was used as in the previous version of the standard.

The surface roughness of shaft and housing is only used for the calculation of the interference fit.