Bearing Quality Inspection
In terms of bearing quality control, the company always adheres to the principle of “high requirements, strict control, and quality first”. The company has set up a quality testing center, with more than 50 quality inspection and testing instruments, such as metallographic microscope, roundness meter, wheel gallery, JD-18 universal length measuring instrument and so on.
Bearing quality inspection project
For each batch of products produced, we will first check the basic dimensions. The tools used for on-site testing are: caliper 0.02mm, micrometer 0.01mm, dial gauge 0.01mm, dial gauge 0.001mm, torsion spring table 0.001mm\0.002 Mm, fan-shaped table 0.01mm, etc.;
Samples are then taken from each batch and professional instruments are used for more detailed quality testing.
Acceleration vibration: S0910
Speed vibration: BVT-1A
Inner diameter: D922 D923
Outer diameter: D051
Inner ring width: G903
Hardness: Rockwell hardness tester
Metallographic organization: metallographic microscope
Surface roughness: roughness instrument
Surface roundness: roundness meter
Others: bearing life test, dustproof test of sealed bearings, leak test of sealed bearings
Our testing process for our products is very strict. Each order’s product will have a dedicated monitoring and inspection, and record the test results. The test report for each batch of products will remain for more than 2 years.