"Professor Diagnostics" to Identify the Causes of Bearing Damage

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/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';

The damage to a bearing's cage may not always be immediately visible. In most cases, it can be difficult to detect at first glance. Common causes include excessive speed, wear, foreign object contamination, and misalignment. According to the professor’s analysis, here are the main reasons behind cage failure: 1. **Foreign Objects**: If hard or rough particles are not properly worn down, they can cause the bearing to stick. When a rolling bearing is in motion, sliding friction is inevitable. The contact between the rolling elements and the cage often leads to sticking, which is typically caused by softer materials. This results in faster wear and eventual breakage as the gap closes. 2. **Fatigue Cracks**: When a bearing experiences high stress or vibration, internal forces can lead to fatigue cracks in the cage. These cracks gradually weaken the structure until it eventually breaks. To prevent this, special bearings with enhanced durability are recommended. 3. **Excessive Speed**: If a bearing operates beyond its rated speed, inertial forces can cause the cage to fracture. High-speed bearings are specifically designed for such applications, offering better performance and reliability under extreme conditions. 4. **Foreign Matter Interference**: Small particles or fragments that get lodged between the cage and the rolling elements can prevent proper rotation. This can result in sudden failure. Keeping the bearing free from large contaminants ensures safe operation even under heavy loads.

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