Precision class of rolling bearings

If you are a mechanical engineering enthusiast or a practitioner in the industrial field, then you must be no stranger to rolling bearings. This small but crucial part is found in almost every mechanical device, from the small fan in your pocket to the large aircraft engine. Don't underestimate this little piece, it's one of the heart of the device. Today, let's talk about the accuracy level and use conditions of rolling bearings.

Let's start with the level of accuracy. Simply put, the accuracy grade is a standard to measure the "performance" of the bearing. This "performance" can be understood as the dimensional accuracy, contour accuracy, and running accuracy of the bearing. The different accuracy levels determine whether the stability of the bearing is high enough in operation.

The accuracy level is selected according to the operating condition. Different use of the environment, the requirements for bearings are also different. Let's look at a few common scenarios:

1. High speed environment: For example, in high-end CNC machine tools, bearings need to run at very high speed, at this time, high-precision bearings need to be selected to avoid machine jitter due to minor errors, thus affecting processing accuracy.

2 Heavy load environment: such as mining machinery such equipment, in this case, the load is very large. Here, the bearing is required not only to be accurate enough, but also to have extremely strong wear resistance and long-term stability. Therefore, in the selection, wear resistance and strength are placed in the first place, and the accuracy requirements are relatively low.

3. Daily general equipment: If it is some daily mechanical equipment, such as washing machines or fans, the accuracy requirements for bearings of this type of equipment will not be particularly high, and standard specifications of bearings can meet the needs.

Many people have a misunderstanding that the higher the accuracy level of bearings, the better, in fact, it is not. The higher the accuracy level of bearings, the higher the manufacturing cost, and the performance improvement brought by high precision is not particularly significant in some application environments. For example, ordinary fans do not need to use ultra-high precision bearings, otherwise there is the possibility of waste.

Therefore, it is wise to choose the right bearing to consider the actual needs, remove the additional costs brought by the blind pursuit of precision, and spend the money on the knife edge.

Whether it is a tall high-precision machine tool, or daily household appliances, rolling bearings play an irreplaceable role. Understanding the relationship between bearing accuracy levels and operating conditions allows you to make more informed decisions when selecting and maintaining equipment. I hope this article can help you better understand and apply rolling bearings to improve the service life and work efficiency of equipment.