In the bearing industry, commonly used hardness representation methods include Rockwell hardness, Brinell hardness, and Vickers hardness. There can be some conversion between these hardness values.
Here are some common conversion tables for bearing hardness and some common hardness knowledge:
1. Rockwell hardness: commonly marked as HRC. The common Rockwell hardness conversion table is as follows:
-HRC=HRB+21 (approximate conversion relationship)
-HRC ≈ HV/3.14 (approximate conversion relationship between Rockwell hardness and Vickers hardness)
2. Brinell hardness: commonly marked as HB. Brinell hardness is calculated by pressing a tungsten ball into the surface of the material under test load and measuring the diameter of the indentation.
3. Vickers Hardness: Commonly marked as HV. Vickers hardness is calculated by pressing a diamond into the surface of a material under test load and measuring the diagonal length of the indentation.
The selection of bearing hardness usually depends on specific application and design requirements. Generally speaking, the higher the hardness, the better the wear resistance of the bearing, but it is also necessary to consider the toughness and fracture toughness of the bearing. Therefore, in practical applications, it is necessary to choose the appropriate hardness based on the specific situation.
It should be noted that the conversion relationship of hardness is only an approximate estimation, and the results of different hardness testing methods may have certain deviations. In practical applications, specific hardness test results and corresponding standards should be referred to for judgment and selection.13621808094
