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      Technical characteristics of bearing seat
      Release Time:2021-07-15 17:22:12      Hits:61

      (1) Inner hole


      The inner hole is the main surface of the bearing seat for supporting and positioning, and it is matched with the outer ring of the bearing. The dimensional accuracy of the inner hole diameter is generally level 7, and the precision requirements are generally level 6. The shape accuracy of the inner hole is generally controlled within the tolerance range of the hole diameter. For the bearing seat with high precision, the shape tolerance is controlled at 1 of the hole diameter tolerance. /3~1/2. In addition to cylindricity and concentricity, the straightness requirements of the hole axis should also be considered. In order to ensure the function of the part and improve its wear resistance, the surface roughness of the inner hole is generally Ra3.2~Ra1.6.


      (2) The distance from the hole axis to the ground


      Ensure the parallelism and size requirements of the base and the upper cover.


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