Manufacturing process of solid bearing steel ball

- Feb 22, 2019-

The first step of the solid bearing steel ball production process is wire drawing, which is to stretch the wire to the required wire diameter with a wire drawing machine;

Then, the drawn wire is placed in a steel ball cold heading machine, and the steel mold in the machine is used to beat the ball embryo; the two cast iron grinding balls in the light ball machine pressurize the cold ball embryo to remove the ball. The outer ring and the two poles on the embryo;

The two cast iron grinding balls in the soft ball machine honed the ball of the light ball to make the ball embryos into the desired ball diameter and surface roughness.


Followed by heat treatment, the preliminary formed solid bearing steel ball is put into the heat treatment furnace for carburizing, quenching and then tempering to make the ball have a certain carburized layer and hardness, toughness and crushing load; grinding wheel circular plate in the grinding machine The heat-treated bulb is subjected to pressure grinding to remove the black oxide layer on the surface of the sphere and correct the accuracy of the sphere.


Grinding the ball embryo in the lapping machine to achieve the precision and smoothness required for the finished product; polishing and cleaning: pour the ball into the polishing drum and rotate it with a polishing detergent to clean the surface;

Manually check the surface of the solid bearing steel ball for any flaws, and measure the roundness with a micrometer, the variation of the batch diameter and the surface roughness measured by the surface roughness meter as the final inspection.