Why should you NEVER use a metal hammer to install bearings on the final drive?

You should never use a metal hammer to install bearings on the final drive because it can cause significant and often invisible damage to the bearing's internal components, leading to premature failure. Bearings are precision components designed to operate with very tight tolerances. The internal components, such as the balls or rollers and the raceways, are hardened to resist wear. However, they are also brittle and susceptible to damage from impact loads. Using a metal hammer to directly strike the bearing can transmit shock loads t....