Bearing Inspection and Diagnosis
Release date:
2025-11-11
To determine whether a removed bearing can be reused, inspect it after cleaning, carefully examining the raceway surfaces, rolling elements, and mating surfaces, as well as assessing the condition of the retainer, checking for increased bearing clearance, and looking for any signs of…
When inspecting and disassembling bearings, first record the bearing's appearance and confirm the remaining amount of lubricant. After sampling, proceed to clean the bearing thoroughly. Commonly used cleaning agents include gasoline and kerosene. The cleaning process for removed bearings is divided into two steps: rough cleaning and fine cleaning. Begin by placing a metal mesh inside the cleaning container to prevent the bearing from directly contacting any contaminants inside. During rough cleaning, be cautious—if the bearing rotates while still carrying debris, it could damage the rolling surfaces. To avoid this, use a brush to carefully remove lubricants and adhering substances. Once the bearing is mostly free of dirt, transfer it to the fine-cleaning stage. In the fine-cleaning step, rotate the bearing gently while immersing it in the cleaning oil, ensuring thorough yet delicate cleaning. Additionally, remember to regularly replace the cleaning oil to maintain its cleanliness.
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