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There are several steps in the manufacturing process:

  • Metal balls start as a wire or bar stock. It is cut to give a pellet with a length approximately the size of the desired ball outer diameter.
  • The metal pellet is headed so that it collapses a rough spherical shape.
  • The rough balls are fed into a machine that passes then between two heavy cast iron or hardened steel plates. THese crush the balls into the correct diameter and makes them into spheres. As a finishing step the balls are then run through a grinding process to improve precision.
  • The finished balls are then heat treated and cleaned.
  • A final polishing machine aps the balls to exact tolerances.
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12y ago

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