Abstract
When components made of different materials are combined to make anything mechanical, consideration must be given to the fact that they will not have the same thermal behaviour. Taper roller bearings mounted in light alloy housings provide an example of such a temperature‐sensitive arrangement. Depending on the difference in thermal elongation, large variations in bearing internal clearance can be obtained, and this can have an appreciable effect on the life of the bearings. The adjustment of the bearings on mounting must therefore be carefully determined. A passenger car gearbox with a light alloy casing where the intermediate shaft is supported in two taper roller bearings is studied. When selecting a suitable adjustment, the resilience of the casing must also be taken into account.
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