How to Judge the Bearing Whether is Genuine Brand?

The bearing is a very important part of agricultural machinery, such as the wheels, rollers, pulleys, and so on. For example, one Kubota DC70 rice harvester has over 15 sizes and 40 pieces of bearings in different sections. We all want to buy and use good quality genuine bearings, and the well-known brands are KOYO, NSK…A good bearing can let a machine works longer life and be much more stable.

So how to choose a genuine brand bearing is a skill and necessary thing. There are usually 6 methods of distinguishing a bearing whether is true or false:

1, Judged by Price:

The bearing price is determined by cost. The products of well-known brands have strict control over raw materials and production processes in the production process, which will also increase the cost on the basis of ensuring the quality of their products, so the market price will not be low!

If the price is much lower than normal, it may be fake. Some manufacturers have made great efforts to reduce the cost of steel and replace steel products with inferior ones, while the color of bearings can well identify these low-cost materials.

Bearing price

2, Judged by the Package:

Brand bearings produced by regular manufacturers have their own special design team, and they are produced in factories with good quality control. Therefore, the packaging of products should be very clear from lines to color blocks. Many brands also have special intellectual property unique LOGO on their packaging. For example, from the appearance, the open NSK bearing is usually packed in a paper box, and the background color is dark blue, and the bearing model printed on it is very clear, using NSK anti-counterfeiting technology.

Judged by the Package

3, Judged by the Embossed Stamp:

Each bearing will be printed with its brand name and label on the surface. Although the font is very small, regular manufacturers have adopted the steel printing technology to print, and the printing is carried out before the overheating treatment, so it is very clear. In general, the font of counterfeit products is very vague, and because of the rough printing technology, the font floats on the surface. Some can even be easily erased by hand or the manual marks are serious.

4, Judged by the Sound:

Hold the inner sleeve of the bearing with the left hand, move the sleeve with the right hand in a small range to make it rotate, and listen for any noise during the operation of the bearing. If there is noise or unsmooth operation when the bearing rotates, we can judge whether the product is from a regular manufacturer.

Judged by the Sound

5, Judged by the Surface Oil Stains:

We should pay special attention to whether there is muddy oil on the surface when purchasing high-quality bearings. Since there is still a certain gap between China’s anti-rust technology and Japan’s advanced technology, it is easy to leave a thick oil mark when carrying out anti-rust treatment on the bearing body. It feels sticky when touched with hands, and almost no traces of anti-rust oil can be seen on the bearings imported with the foreign original packaging. People who are particularly careful can smell a special smell on the bearings in Japan and Germany. This is the smell of anti-rust oil, but can’t be seen.

 Judged by the Surface Oil Stains

6, Judged by the Details of Edge:

Due to the limitation of production technology, counterfeit bearing products are not handled well in these details, which we can easily identify.

For example, the chamfer of KF bearing mostly shows the feeling of black smoothness, but there are blocky spots in the black (which can be seen but cannot be felt), which is a process left by quenching. NSK bearings generally show milky white or gray irregular patterns at the chamfer, which is also a trace left by quenching.

Update cookies preferences
Scroll to Top