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This work presents formulation of linear regression model for the effect of shaft and bearing deviations on the clearance of the assembly of mating parts. The model validation confirmed the existence of statistical relationships between clearance and shaft and bearing deviations. Applying data collected from direct measurement of shafts and bearings produced in the workshop, R values of 99.7% was obtained for assembly of mating parts model ; thus, indicating that about 99.7% of the parts produced are interchangeable, thus reducing the probability of producing scraps to the barest minimum. The results obtained using critical parameters of assembly of mating parts and multiple linear regression models give good estimation and are validated with experimental values with an error much lesser than 4% error. The regression model also showed that given the shaft and bearing deviations, the expected clearance can be determined, thus, enabling the quality control personnel to significantly monitor and reduce variation in the assembly of mating parts.

Applying Regression Model to Predict the Effects of Shaft and Bearing Deviations on the Clearance of the Assembly of Mating Parts