How to Judge Whether the Bearing Can be Used Again
How to Judge Whether the Bearing Can be Used Again
2022年4月6日
Bearings are often Encountered in our life. Do you know the 30 Reasons why Bearings Make Noise?
Bearings are often Encountered in our life. Do you know the 30 Reasons why Bearings Make Noise?
2022年4月6日

6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings

  • Bearing is an important part of mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient in the process of movement, and ensure its rotation accuracy.6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings
  • In production and processing, once fake and shoddy bearings are used, the consequence will not only lead to machine maintenance and even shutdown, but also cause millions of losses for the company. 
  • Today, I’d like to share the common fraudulent means of bearings and 6 precautions for distinguishing true and false bearings.6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings

6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings

  1.  Make bearings with iron and carbon steel or repair waste bearings. The former will cause insufficient bearing hardness, while the latter will cause insufficient bearing accuracy.6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings
  2. Mark the inferior bearings and small factory bearings with the trademarks of large factories, and fake the internal and external packaging and certificate of conformity of large brand products.6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings
  3.  Users, dealers, agents and even the spot sales department of counterfeit manufacturers who fake well-known brands.
  4.  Fake defective bearings as genuine bearings.
  5.  Use ordinary grade bearing to pretend to be a bearing with high precision grade.
  6. Genuine and fake goods are sold together.
  7.  Fake goods are sold at the price of genuine goods, genuine goods are sold at a high price, and fake prices are used.
  8.  If you want cheap goods, give fake ones, and if you want good quality, give real ones.6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings

6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings

Six methods to distinguish true and false bearings

  • Whether the outer packaging is clear.
  • In general, the brand of Zhengchang has its own special designers to design the external packaging, and arrange the factories with qualified production conditions for production. Therefore, the packaging is very clear and unambiguous from line to color block.6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings
  •  Check whether the certificate is standardized.6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings
  • For example, there is a watermark in the certificate of bearing bush, and there are brand words and anti-counterfeiting identification number in the watermark.
  •  Whether the steel seal is clear.
  • Brand words and labels will be printed on the bearing body. The font is very small, but most of the products produced by the original factory use steel printing technology, and they are pressed before overheating treatment. Therefore, although the font is small, it is deeply concave and very clear.
  • The font of counterfeit products is not only fuzzy, but also floating on the surface due to the rough printing technology. Some of them can even be easily erased by hand.
  • For example, if the steel seal on NSK bearing is touched by hand, it has no touch, but if you scrape it with your fingernail, you can feel the existence of the steel seal, while for imitation bearings, the steel seal is either convex or concave.
  •  Check the overall condition of the bearing.
  • First, look at the appearance quality, whether there is poor processing quality, obvious circular runout and other phenomena; Whether there are muddy oil traces.
  • The domestic bearings have obvious oil traces and the smell of antirust oil, while the original imported bearings can hardly see the traces of antirust oil; Whether the goods are genuine. There are obvious specification and model errors such as CAK inner hole is not conical and 2RS only has unilateral seal.6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings
  • Look at the metallic luster.
  • Bearing chamfers are no longer polished after heat treatment. Genuine chamfers are quite smooth with gray metallic luster, while fake ones either have unsmooth chamfers or the color is not gray metallic luster.
  •  Listen to voice discrimination.
  • Hold the inner sleeve of the bearing left and right, turn the outer sleeve with the right hand to make it rotate, and listen to whether there is any noise. Fake and shoddy products will inevitably be mixed with impurities such as sand in the production process, so they will make a noise when rotating, which is very different from genuine products with strict production standards.
  • 6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings
6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings