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How to distinguish the authenticity of heavy caster bearings
Views：2227 Updated：2021-12-04
1: Scale weight: For the "NSK" heavy-duty bearings of the same model, the material used for counterfeit heavy-duty bearings is significantly less than that of the genuine ones. Because most counterfeit heavy-duty bearings cut corners and replace high-oxidized special steel with general steel, they will be lighter than the original in terms of weight.
2: Look at the packaging: the counterfeit "NSK" brand heavy-duty bearing outer packaging is slightly different from the genuine "NSK" brand heavy-duty bearing outer packaging. The "NSK" trademark on the right side of the box is in red and bold, while the genuine The "NSK" trademark is in white and bold. From the appearance of the heavy bearing, the imported heavy bearing of skf skf is usually packed in a carton. The color of the carton is dark blue, and the heavy bearing model printed on it clearly uses NSK anti-counterfeiting technology. The fake heavy-duty bearing is difficult to achieve this point, the box color is relatively light and easy to fade. Typefaces of heavy-duty bearing models are also in a trance
3: Whether there is noisy noise: hold the inner sleeve of the heavy bearing with your left hand, and turn the cover with your right hand to listen to whether there is noisy noise. Because most of the counterfeit products are produced under backward conditions, impurities will inevitably be mixed in during the production process, and they will be hidden in the heavy bearing body, so noise will be generated when rotating. This is the biggest difference from a genuine manufacturer that strictly implements production standards and is operated by machines.
4: Whether the chamfer is even: The chamfer of the so-called heavy bearing, that is, the junction of the horizontal plane and the vertical plane, the counterfeit heavy bearing is not handled satisfactorily at these corners due to the limitation of production technology.
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