how are deep groove ball bearings made?

The producing process of deep groove ball bearings mainly includes four steps: ring processing, the production of ball and cage, assembly, and quality inspection.

• Rings' processing

1. Forging: Forming raw materials into rings through forging is a process that utilizes local compressive forces to shape metal.

2. Turning: Then the forged ring is machined to the final size through turning, which is a process of removing excess material to achieve the desired shape and size.

4. Heat treatment: The bearing components (rings and balls) undergo heat treatment to improve their strength, hardness, and wear resistance.

5 Precision machining:

End face and outer circle processing: Soft grinding of double end faces ensures parallelism, and centerless grinding of outer circles controls taper. ‌‌

• Ball and cage production

Ball bearing manufacturing:

After cold stamping of steel wire, it undergoes multiple grinding and heat treatment hardening processes to achieve a final precision of micrometer level. ‌‌‌‌

Processing of cages:

Iron sheet cutting, forming, and shaping, some require drilling or pulling holes to ensure even distribution of ball bearings. ‌‌‌‌

• Assembly and testing

Assembly steps:

The automatic assembly machine pushes the ball into the space between the inner and outer rings, arranges the ball splitter evenly, installs the cages, injects grease, and installs the seals. ‌‌‌‌

Quality inspection:

Screen abnormal bearings by detecting vibration noise, and engrave model and trademark information with a laser machine.

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