Whether the outer packing of self-lubricating bearing is clear

In general, the self-lubricating bearings of the factory brand have their own special designers to design the external packaging, and arrange the factories with qualified production conditions to make production, so the packaging is very clear and unambiguous no matter from the line to the color block, and some parts of the SKF brand have special designs to protect their intellectual property rights on the packaging.

Whether the steel seal on the self-lubricating bearing is clear

The self-lubricating bearing body will be printed with brand words, labels, etc. The font is very small, but most of the products produced by the factory use the steel printing technology, and press before overheating treatment, so the font is small, but concave deep, very clear. But the font of the counterfeit product is not only fuzzy, because the printing technology is rough, the font floats on the surface, some of which can even be easily erased by hand.

Whether the bearing body of self-lubricating bearing has any noise

Hold the inner sleeve of the self-lubricating bearing with the left hand, and rotate the sleeve with the right hand to see if there is any noise. Due to the backward production conditions of most counterfeiting products and the complete manual workshop operation, it is inevitable that impurities such as sand will be mixed into the production process and hidden in the bearing body, so it will make noise when rotating. This is the biggest difference from the factory brands that strictly implement production standards and operate with machines.

Whether there is muddy oil on the surface of self-lubricating bearing

This should be paid special attention when purchasing self-lubricating bearings. As the current anti rust technology in China is not very good, it is easy to leave a thick oil mark on the bearing body when it is antirust treated. It is sticky when it is held in the hand, but almost no traces of anti rust oil can be seen on the original SKF Bearing in foreign countries. However, the expert who is particularly careful says that the self-lubricating bearing smells a kind of smell, and it must be under the anti rust oil, but it can not be seen.

Whether the chamfering of self-lubricating bearing is even is called the chamfering of self-lubricating bearing, that is, the intersection of horizontal and vertical surfaces. Due to the limitation of production technology, the fake self-lubricating bearing has not been treated satisfactorily at these corners.