What is a common issue that can arise if the shaft clearance with a bearing is too tight?

When the shaft clearance with a bearing is too tight, it can lead to increased wear. This is because the tighter fit creates more friction between the shaft and the bearing surfaces. Friction generates heat, which can exacerbate the wear process, leading to premature failure of the bearing and the shaft.

In a well-designed system, there is an optimal clearance that allows for smooth rotation while still supporting the load effectively. However, if this clearance is insufficient, the moving parts may not be able to move freely, which accelerates the deterioration of the materials involved.

The potential for misalignment and mechanical interference also increases with tighter clearances, compounding the wear issue. Overall, managing the clearance between the shaft and bearing is crucial for maintaining the longevity and functionality of mechanical systems.