What problem can be indicated by high temperature detected in a pillow block bearing on a V-belt drive?

High temperature in a pillow block bearing on a V-belt drive can indicate excessive tension in the drive system. When V-belts are too tightly tensioned, they create additional friction in the bearings. This extra friction leads to increased heat generation as the components work harder to overcome the resistance. The bearing operates at higher than normal temperatures, which can lead to premature wear, failure in lubrication, and even overheating of the bearing itself. Recognizing excessive tension as the cause of high temperatures can help in adjusting the belt tension to an optimal level, thus reducing the heat and ensuring the efficient operation of the drive system.