What should not occur in an operating centrifugal pump regarding the outer race of a bearing?

In an operating centrifugal pump, the outer race of a bearing is designed to remain stationary. The primary function of the bearing is to support the rotating component (usually the shaft) while ensuring that it can turn smoothly and efficiently without excessive friction or wear. The outer race is typically fixed within the pump casing and provides a stable position for the inner race and rolling elements of the bearing.

When the outer race remains stationary, it allows the inner race to rotate freely, which is essential for the proper function of the pump. If the outer race were to turn, it would indicate a failure in bearing function or misalignment, which can lead to rapid degradation of the bearing and failure of the pump itself. Operating smoothly is vital for efficiency, and while some wear may happen over time, it is not ideal and should be monitored to prevent operational issues.

Understanding the function of each component in the bearing and how they interact helps ensure that the centrifugal pump operates effectively and continues to perform its intended purpose in wastewater management.