How to distinguish the quality of TIMKEN bearings

       The first thing to judge is whether the TIMKEN bearing outer packaging is clear: whether the packaging is clear or not. Under normal circumstances, the factory brand has its own special designer to design the outer packaging. It should be able to identify it carefully and arrange production. The factory that passes through the conditions is produced and produced, so the packaging is very clear and unambiguous, from line to color. Some manufacturers still have some special identifiers, so pay attention to
Then listen to the TIMKEN bearing for noise, hold the TIMKEN bearing body sleeve, and turn the jacket to make it rotate to hear if there is any noise. This is the biggest difference from the standard manufacturer of TIMKEN bearings and machine-operated brands. Most of the counterfeit products are out of production conditions, and they are completely hand-worked. In the production process, impurities such as sand are inevitably incorporated into the TIMKEN bearing body, so they will make noise when rotating. The next step is to see if there are turbid oil marks on the surface. Pay special attention when purchasing TIMKEN bearings.
At present, the domestic anti-rust technology is not mature enough, so it is easy to leave a thick oil trace when the TIMKEN bearing body is rust-proofed, and the original imported TIMKEN bearing can hardly see the trace of anti-rust oil, if you are Experts, smell the taste of TIMKEN bearings, can also smell anti-rust oil, just can't see it. Finally, see if the chamfer is even, that is, the intersection of the horizontal and the vertical, the fake TIMKEN bearing has no high-tech equipment due to the limitation of production technology, so it will be handled poorly in these corners. Observing is not difficult to see.
Then check whether the steel stamp is clear, and the brand name and label will be printed on the TIMKEN bearing body. The font is very small, but most of the products produced by the factory use the stamping technology, and the type is pressed before the heat treatment, so the font is small, but it is concave-deep and very clear. If it is a counterfeit product, its font is very vague, because the printing technique is rough, the font floats on the surface, and some can even be easily wiped off with a wet cloth or hand.

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Analysis of the causes of burns in INA bearings

      The so-called INA bearing burn injury state means that the INA bearing's race wheel, rolling element and cage are heated rapidly during rotation until discoloration, softening, welding and damage.
The main cause of burns in INA bearings is the poor lubrication of INA bearings, the possibility of using irregular lubricants, or too many lubricants, too few, are incorrect. For information on INA bearing lubrication, please refer to the introduction of the two articles "The Misunderstanding of Lubricating Grease in Repairing FAGINA Bearings" and "Introduction to Lubrication Technology in INA Bearings".
Secondly, it may be an excessive load (preload is too large). The speed is too high. The play is too small. There is water or other foreign matter invading. If the above two cases are not the case, the accuracy of the shaft, the INA bearing housing is poor, and the deflection of the shaft is large. Seeing this, I think everyone wants to know the solution. First, we should study the lubricant and lubrication method, choose the INA bearing lubricant, and its dosage, and correct the choice of INA bearing. Research should be coordinated, INA bearing clearance and preload, and improved sealing. Check the accuracy of the shaft and INA bearing housing. Of course, if you have an expert next to you, let him operate and learn the best!
It is recommended to pay attention to the installation, lubrication, clearance and other aspects of the INA bearing when using it as accurately as possible.

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