Precautions When Purchasing Bearings
Source: Bearing Network | Date: June 15, 2014
When purchasing bearings, it's essential to ensure that the product meets quality standards. Understanding the production standards is a fundamental skill for any buyer. Poorly done due diligence can lead to safety hazards and disruptions in normal operations. Therefore, buyers must learn how to assess bearing quality effectively. This knowledge is also crucial for maintenance technicians and bearing professionals. First, it's important to note that most bearings are made from high-carbon steel, which is resistant to deformation but has a drawback: it is brittle and can crack easily. A simple test is to tap the bearing with a metal object; if it sounds dull or breaks, it may be of poor quality. Second, check the hardness of the bearing. A properly manufactured bearing should have consistent hardness throughout its structure. You can use a hardness tester or compare it with known standards. Third, during operation, the bearing should not produce excessive internal noise. Unusual sounds could indicate defects, misalignment, or improper installation. Fourth, invest in a reliable caliper. Cheap measuring tools may not provide accurate readings, leading to incorrect selections. A good caliper can cost around 100 yuan, but it's worth the investment for precision. These methods are straightforward, but mastering them requires both theoretical knowledge and practical experience. Regular practice and understanding of bearing mechanics will help you make better decisions when purchasing or maintaining bearings.
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