What Is The Rockwell Hardness Of A Precision Ball

The Rockwell hardness of a precision ball, also known as a bearing ball, is a measure of its hardness and resistance to deformation. The Rockwell hardness scale is a standardized method of measuring the hardness of a material by determining the depth of indentation made by a diamond or hardened steel ball under a specified load.

The Rockwell hardness of a precision ball will depend on the material it is made of, as well as its size and other factors. For example, steel bearing balls are typically made of a high-carbon or high-chromium steel alloy, and they may have a Rockwell hardness of around 60 to 70. Ceramic bearing balls, on the other hand, are much harder and may have a Rockwell hardness of around 90 to 100.

It is worth noting that the Rockwell hardness of a precision ball is not the only factor that determines its performance in a ball bearing or other mechanical application. Other factors, such as the ball's size, surface finish, and roundness, can also impact its performance.