Where do you apply pressure on a tight fitting bearing being installed on a shaft?

Applying pressure on the inner race of a bearing during installation is crucial for ensuring proper function and longevity of the bearing. When the inner race is pressed onto the shaft, the bearing can achieve the correct fit and alignment, which is essential for smooth operation. This method helps to prevent any unwanted stress or deformation that could occur if pressure were applied to the outer race instead.

If pressure were to be applied to the outer race, it could cause damage or misalignment, leading to premature wear or failure. The shaft itself should not be pressed upon, as doing so could create an imbalance or misalignment in the bearing's seating. Finally, using the housing surrounding the bearing for applying pressure isn't advised either, since it could result in uneven force distribution that can damage the bearing or the housing. Therefore, pressing on the inner race is the most effective method to ensure that the bearing is properly seated and functions as intended.