News
CHG enjoys a very good reputation among our cooperators and customers all over the world.
Position :
Home > News > Industry News

Simple ways to identify the quality of bearings

Jul 21, 2022
1. Whether there are cracks
Bearings in the production and manufacture of multiple processes, and bearing processing needs to be transferred multiple times, in these processes will occur bearing rupture. Cracked bearings have a short service life and have a significant impact on work safety. The regular bearings will conduct 100% magnetic or radiographic inspection of the bearing components before leaving the factory.
 
2. Whether there is a noise when turning
Most of the counterfeit and inferior bearing products production environment is harsh, the production process and production conditions are very backward.During the production process, impurities such as dust and gravel are usually mixed into the bearing body. Once misused in the machinery, these inferior bearings in the rotation process will appear noise or rotation is not smooth phenomenon. The regular bearing is silent when rotating, and the rotation process is very smooth, and there is no obstacle. Therefore, if you buy a bearing offline, it is best to hold the bearing with your left hand, repeatedly dial the outside of the bearing with your right hand to rotate it, and listen carefully to whether there is noise during the rotation of the bearing.
 
3. Whether the surface is smooth
Bearing grinding is very important. It is necessary to select a suitable grinding wheel to complete the grinding, and strictly control the linear speed to avoid raceway burns. Then for fine grinding, it is necessary to choose a resin grinding wheel with a particle size of 46° or 60° for grinding. The grinding amount cannot exceed the rough grinding process, and the finish must meet the requirements of the specified grade. However, some fake and inferior bearings lack professional equipment in the production, so the surface of the bearing is uneven or scratched.

 
4. Whether there are turbid oil stains on the surface
Bearing as a hardware product, in order to ensure that it can maintain good performance during use, usually the bearing manufacturers will be anti-rust treatment of the bearing. However, due to the technical gap of various bearing manufacturers, the anti-rust technology of some bearing manufacturers is not advanced, and it is easy to leave thick oil traces when the bearing is treated with anti-rust, which feels sticky and inconvenient to clean. The bearing materials of our CHG are mostly bearing steel and ceramics, and bearing steel bearings can be optionally covered with stainless steel, rubber, metal and other protective layers that are not easy to rust. Bearings with protective layer have no odor, no oil stains, no dirt, and are more assured to use.
 
5. Whether the steel stamp is clear
Each bearing product produced from a regular manufacturer, the surface will be engraved with its brand words, labels and other information, although the handwriting is small, but are printed by the steel printing technology, and before the heat treatment has been pressed, each word dent is extremely deep, the handwriting is clear. The counterfeit and inferior bearing products, not only the handwriting is blurred, but also floats on the surface, can be easily erased, the printing technology is very rough, and the manual traces are very serious.
 
The above are some simple ways to identify the quality of bearings to share. Hope these simple ways can be helpful when you buy bearings. Of course, in order to reduce unnecessary trouble, you are welcome to buy the best quality bearings directly from CHG.
Share:
related news
Application of rolling mill bearings
Feb 28, 2024
Rolling mill bearings should be selected according to the type and working characteristics of the rolling mill. 1. Billet opening machine and billet mill: This type of rolling mill generally has a large rolling force and strong impact load, but the speed is not high;
CHG Bearing:High quality rollers-rolling element
Jan 25, 2024
CHG Bearing can produce all kinds of high-precision cylindrical and tapered rollers in the range of φ15mm to φ160mm in diameter and 20mm to 220mm in length, with an annual output of 10 million pieces and product precision up to G1 and G1A (Grade I) standards. More than 150 sets of various precision equipment, and various perfect special testing instruments, ultrasonic flaw detection (UT), magnetic particle flaw detection (MT), eddy current flaw detection (ET) instruments, spectrometer, carbon and sulfur analyzer, roundness meter, contour roughness meter, etc.
Types of thin-section bearings
Dec 29, 2023
Firstly, Thin-walled ball bearings with equal cross-sections. Secondly, Crossed roller bearings of equal cross-section have cylindrical rollers arranged crosswise on the V-shaped raceway, and the rollers are separated by isolation blocks.
Structure and features of CHG precision ball bearing 618 619 series
Dec 14, 2023
The deep groove ball bearing is a kind of rolling bearing with most representatives, and it has features of small friction coefficient, high limiting speeds, simple structure, low cost, and high manufacturing precision. It has various sizes and structures, and is used in precision instruments, low noise motors, automobiles, motorcycles and general machinery industries, and a kind of bearing with most applications in the machinery industry. The bearing can bear mainly the radial load, but also can bear a certain axial load.
Email Skype Whatsapp