This kind of High Precision Bearing Steel Ball adopts high quality bearing steel as raw material, and refined by advanced heat treatment process. Its surface hardness can reach 55-65hrc, volume hardness can reach 50-62hrc, and the hardness gradient distribution is uniform. It added chromium element, to form a dense layer of chromium oxide layer in the steel surface, effectively block the contact between steel and air so as to prevent the effect of rusting steel.what’s more, the popularization and application of the High Precision Bearing Steel Ball will not only promote the development of steel ball manufacturing industry, but also will promote the continuous development of technology in related industries. It also has the advantages of long service life, fine workmanship, smooth surface, low costs and wear resistance. It is deeply loved by our customers due to high quality.
The High Precision Bearing Steel Ball is widely used in all kinds of precision machinery, bearings, electrical equipment, household appliances, auto parts and so on.
Our production line covers the entire production process from wire drawing, cold pier, heat treatment, grinding, refining, polishing, cleaning, and all the way until inspection and packaging.
Jinniu Steel Ball is equipped with the most advanced production machines and testing instruments. With our sophisticated equipments, we can perform all the following processes on steel ball: roundness testing, vibration testing, random value detection, surface smoothness detection, Rockwell hardness testing, etc.