Our company's bearing steel balls and stainless steel balls are produced in strict accordance with national standards and have passed the ROHS and REACH tests of SGS testing agencies. It is not easy to make a seemingly simple small steel ball into a round shape.
It requires more than a dozen processes to achieve high precision. The wire bought from the market cannot be used directly. It needs to be annealed and drawn to the corresponding size before it can proceed to the next step: cold heading, then ring removal → rough grinding → soft grinding → ball blank forming → polishing ball (or filing → soft grinding) → hard grinding → fine grinding → fine grinding (or polishing) → super fine grinding.
After these more than a dozen processes, it has already gone through thousands of tempering and has been reborn. Each small steel ball is made by the masters with care. Finally, it must be strictly screened by the photoelectric automatic appearance inspection instrument to achieve 99.99% flawless high quality, so that you can use it with confidence and purchase with peace of mind. If you need a test report or a quotation, you can contact us.
