"Professor Diagnostics" to Identify the Causes of Bearing Damage

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Bearing damage often presents in subtle ways, making it difficult to detect without proper inspection. The main causes of damage include improper foreign object intrusion, excessive speed, wear, and misalignment. According to the professor's analysis: 1. Hard or sharp foreign objects that are not properly removed can cause the bearing to stick. When a rolling bearing is in operation, sliding friction may occur, especially between the roller and the cage. This sliding contact is hard to eliminate entirely. If the sticking occurs due to softer materials, wear can accelerate quickly. Over time, the gradual buildup of debris can lead to premature failure of the cage. 2. When a bearing experiences "sensation," it refers to abnormal internal forces that can create fatigue cracks in the cage. These cracks may eventually lead to structural failure if not addressed. To prevent this, special bearings designed for high-stress environments can be used. 3. Exceeding the recommended speed limits can also cause damage. High speeds generate inertial forces that may cause the cage to break. For such situations, high-speed bearings are specifically engineered to handle these conditions. 4. Foreign particles trapped between the cage and the rolling elements can prevent proper rotation, leading to increased stress and potential breakage. By preventing large contaminants from entering the bearing, even under heavy loads, the system can remain safe and functional.

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