Quality Control

  Deep groove ball bearings are one of the most widely used bearing types in the world. From electric motors to automotive wheels, they enable smooth rotation under various loads and speeds. But how exactly is a deep groove ball bearing made?   While it looks simple, consisting of just a few rings, balls, and a cage, the manufacturing process requires micron-level precision and strict quality control. One wrong move, and the bearing fails. Below, we detail the complete 13-step production process.   (Note: If you are looking for a reliable bearing partner, we warmly welcome you to visit the Welink Bearing factories in Ningde or Ningbo to see this process in action!)      Part 1: Ring Manufacturing Step 1: Raw Material Preparation • The production proce...