In temperature mounting, which method is NOT typically used to mount a bearing to a shaft?

When mounting a bearing to a shaft using temperature methods, the primary purpose is to create an interference fit that ensures the bearing remains securely in place once it reaches operating temperature. The typical methods used for this involve adjusting one of the components (either the bearing or the shaft) through temperature changes to facilitate assembly.

Heating the bearing allows it to expand, making it easier to slide onto the shaft. Once the bearing has cooled after being expanded, it contracts back to fit snugly onto the shaft. Cooling the shaft while leaving the bearing at a normal temperature also works, as the reduction in size of the shaft allows for easier assembly.

The method of heating both components, however, is not standard practice because it would remove the advantageous interference fit when both parts expand. This method could lead to difficulties in assembly and ensure that the bearing does not grip the shaft as intended upon cooling, ultimately compromising the fit and functionality.

When evaluating the feasibility and common practices in bearing mounting, the focus is on achieving a secure fit without compromising the operational integrity of the assembly. Thus, the method described in the final choice, of heating both components or cooling both, is not conventionally used in practice.