Evaluation of Geometry Factors in Roller Bearings
Final technical rept. 1 Jul 1968-15 Jul 1970
GENERAL MOTORS CORP INDIANAPOLIS IN ALLISON GAS TURBINE DIV
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An experimental study to evaluate the effect of five geometry factors and two operational factors on roller end wear and skidding in roller bearings is described. Running each of 80 test specimens for five two-hour cycles or until failure constituted the physical testing which was based on a one-half replicate of a factorial experiment. Results, shown in aligned and misaligned bearing operation classifications, indicate that end wear is affected to a greater extent by factor interactions than by main effects. Recommendations are made for the optimum values of the test variables to be used in roller bearings of the size, type, and under similar conditions of operation that will have the least probability of roller end wear.
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