Why did the bearing fail after just a few days of replacement?
2 Answers
The reason why the bearing failed after just a few days of replacement is that when replacing the bearing with a different supplementary code, the outer ring was not replaced at the same time. Here is some relevant information about bearings: 1. Introduction to bearings: Bearings are an important component in contemporary mechanical equipment. Their main function is to support the rotating body of the machinery, reduce the friction coefficient during its movement, and ensure its rotational accuracy. 2. Bearing life: Under a certain load, the number of revolutions or hours that a bearing undergoes before pitting occurs is called the bearing life. Due to differences in manufacturing precision and material uniformity, even bearings of the same material and size from the same batch may have different lifespans under the same working conditions.
As someone who spends years in the workshop, I've seen bearings fail instantly too many times. Counterfeit or refurbished parts are the worst—some sellers polish old bearings and sell them as new. Poor installation techniques are also common, like apprentices hammering them in forcefully, causing internal damage to the bearing balls. There are even more frustrating cases: last time when helping Old Zhang fix his car, I found his wheel hub was deformed but left untreated, crushing the new bearing under pressure. If the repair shop doesn’t clean the axle hub before installation and forces it in with grit, the bearing will grind like sandpaper. A quick reminder: if you hear a buzzing noise from the wheel after replacing the bearing, don’t hesitate—go back and confront them immediately! After all, this is a matter of life and death.
