INA bearing lubrication skills

Rust prevention performance
The grease used in the INA bearing must have an anti-rust effect, and the anti-rust agent is preferably insoluble in water. Grease should have good adhesion to form an oil film on the surface of the steel, even if the grease is filled with water.
Mechanical stability
Grease becomes soft during machining and causes leakage. When there is a vibration application example, the grease will be pulled from the INA bearing housing into the INA bearing. If the mechanical stability of the grease is not sufficient, the grease will be continuously thrown out of the INA bearing, which will cause mechanical collapse of the soap structure and destruction of the grease.
Oil seal
The oil seal is necessary to protect the INA bearings and lubricants from external contamination, and no matter whether the sundries or moisture can penetrate into the INA bearing to prevent damage. Proper installation and maintenance is an important factor in the longest service life of INA bearings. At the same time, we must pay attention to the cleanliness of the INA bearing, the correctness of the INA bearing selection and the selection of appropriate installation and maintenance tools. INA bearings must be protected from contaminants and moisture and must be properly installed and lubricated. The design of the INA bearing, the condition of the oil seal, the type of lubricant and the lubrication cycle, as well as the special maintenance play an important role.
Mixed grease
Never mix incompatible greases. If two incompatible greases are mixed, the consistency will usually soften and eventually damage may occur due to the loss of grease. If you don't know which type of grease was originally used in INA bearings, you should first remove the old grease inside and outside the INA bearing to add grease.
Classification of oils and fats
According to temperature and working conditions: grease can be classified according to their allowable working temperature. The consistency and lubricating ability of grease are affected by working temperature. Imported INA bearings operating at a certain temperature must choose the correct consistency at the same temperature. Grease with good lubrication. Grease is manufactured in different operating temperature ranges and can be classified into low temperature (LT), medium temperature (MT) and high temperature (HT) greases. At the same time, there is a type of grease called EP (extrusion resistant) or EM (resistant to extrusion and added molybdenum disulfide), with additives to enhance the strength of the lubricant film.

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How to judge the quality of KOYO bearings

      First, the outer packaging of KOYO bearings is clear:
Under normal circumstances, KOYO bearings of the factory brand have their own special designers to design the external packaging, and arrange the production facilities to produce and produce, so the packaging is very clear from the line to the color block, unambiguous, part The brand's accessory packaging also has a unique design specifically designed to protect your intellectual property.
Second, whether the steel printing on KOYO bearings is clear:
Brand words, labels, etc. will be printed on the KOYO 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 the recess is deep and very clear. The fonts of counterfeit products are not only blurred, but because of the rough printing technology, the fonts float on the surface, and some can even be easily erased by hand.
Third, KOYO bearing KOYO bearing body has a strange noise:
Hold the KOYO bearing inner sleeve of KOYO bearing with your left hand, and turn the outer sleeve with your right hand to make it rotate to hear if there is any noise. Due to the backward production conditions of most counterfeit products, it is completely hand-worked. It is inevitable that impurities such as sand will be incorporated into the KOYO bearing body during the production process, so it will make noise when rotating. This is the biggest difference between a factory brand that strictly enforces production standards and operates with machines.
4. Is there any turbid oil on the surface of KOYO bearings:
This should be paid special attention when purchasing KOYO bearings. Since the current domestic anti-rust technology is not particularly good at home, it is easy to leave a thick oil trace when the KOYO bearing body is rust-proof, and it is sticky on the hand, and the foreign original KOYO bearing is almost seen. Not to trace the anti-rust oil, but it is particularly careful that the expert said that KOYO bearing smells like a smell, it must be under the anti-rust oil, just can't see it.
5. Whether the chamfer of KOYO bearing is uniform:
The so-called chamfering of KOYO bearings, that is, the intersection of the horizontal and vertical faces, the counterfeit KOYO bearings are not well handled at these corners due to the limitation of production technology.

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