What type of maintenance might be necessary for bearings in rotary pumps?

In the context of rotary pumps, the maintenance of bearings is crucial for ensuring the smooth operation and longevity of the equipment. Bearings are subject to wear and tear due to continuous movement and load. Over time, the lubricant within the bearings can degrade, leading to increased friction, overheating, and ultimately failure.

Re-lubrication is the process of adding fresh lubricant to maintain adequate lubrication levels and minimize friction and wear. In cases where the bearings have experienced significant wear or damage, replacement may be necessary to restore optimal performance. Regularly assessing the condition of the bearings and addressing lubrication is fundamental in preventing pump failure and ensuring efficient operation.

Although realignment, adjustment of clearance, and cleaning can be part of a broader maintenance strategy for rotary pumps, they do not directly address the typical wear and tear that affects bearings specifically. These alternative actions serve other functions, such as ensuring overall pump efficiency, but they do not focus on the lubrication and condition of the bearings, which is why re-lubrication or replacement is the most critical type of maintenance for them.