Four methods for disassembling rolling bearings - 1 views

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  #1 kbojezhang44 on 22 Jul 20

   

  1. Pushing method Push the bearing with a press, the work is stable and reliable, and the machine and bearing shielding machine room will not be damaged. The press has manual push, mechanical or hydraulic press. Matters needing attention: The pressing point of the press should be on the center of the shaft, and must not be biased.

  
  

  2. Percussion The knocking force is generally added to the inner ring of the bearing. The shielding machine room knocking force should not be added to the rolling body and cage of the bearing. This method is simple and easy, but it easily damages the bearing. When the bearing is located at the end of the shaft, use less than the bearing An inner diameter copper rod or other soft metal material is pressed against the shaft end, a cushion is added to the lower part of the bearing, and it can be removed by gently tapping with a hammer. The application of this method should pay attention to the proper placement of the cushion and the correct focus. Three, pull out method With a special puller, as long as the handle is rotated, the bearing will be slowly pulled out. When disassembling the outer ring of the bearing, the angle of the two legs of the puller should be spread outward; when disassembling the inner ring of the bearing, the two legs of the puller should be inward and stuck on the end surface of the inner ring of the rolling bearing.

  
  

  Matters needing attention: 1. The hook of the puller should be hooked to the inner ring of the bearing, not to the outer ring, to avoid excessive loosening or damage of the bearing; 2. When using the puller, align the screw with the center hole of the shaft, and do not skew it. Attention should also be paid to the stress of the hook and bearing, and do not damage the hook and bearing; 3. Pay attention to prevent the pull hook from slipping; 4. The bending angle of the two legs of the puller is less than 90 °. Four, hot dismantling method Used to remove tight-fitting bearings. First, cast the oil heated to about 100 ℃ on the bearing to be disassembled with an oil pot. After the bearing ring is heated and expanded, the bearing can be pulled out with a pull tool.

  
  

  Matters needing attention: 1. First, the puller should be installed on the bearing to be disassembled, and a certain pulling force should be applied; 2. Before heating, the shaft should be wrapped with asbestos rope or thin iron plate to prevent the shaft from expanding due to heat, if not, it will be difficult to disassemble. When removing the bearing from the hole of the bearing box shell, the hole of the bearing box shell can only be heated, not heating Bearing 3. When pouring oil, the shielding machine room should pour the oil pot smoothly on the bearing ring or rolling body, and place an oil basin below it to collect the hot oil that has flowed down to avoid waste and burns; 4. The operator should wear asbestos gloves to prevent burns.

   

  <div class="cArrow"> </div><div class="cContentInner"><p>1. Pushing method Push the bearing with a press, the work is stable and reliable, and the machine and bearing shielding machine room will not be damaged. The press has manual push, mechanical or hydraulic press. Matters needing attention: The pressing point of the press should be on the center of the shaft, and must not be biased. </p><p><br /></p><p>2. Percussion The knocking force is generally added to the inner ring of the bearing. The shielding machine room knocking force should not be added to the rolling body and cage of the bearing. This method is simple and easy, but it easily damages the bearing. When the bearing is located at the end of the shaft, use less than the bearing An inner diameter copper rod or other soft metal material is pressed against the shaft end, a cushion is added to the lower part of the bearing, and it can be removed by gently tapping with a hammer. The application of this method should pay attention to the proper placement of the cushion and the correct focus. Three, pull out method With a special puller, as long as the handle is rotated, the bearing will be slowly pulled out. When disassembling the outer ring of the bearing, the angle of the two legs of the puller should be spread outward; when disassembling the inner ring of the bearing, the two legs of the puller should be inward and stuck on the end surface of the inner ring of the <a target="_blank" rel="noopener noreferrer" href="https://www.cytransmission.com/roller-bearing">rolling bearing</a>. </p><p><br /></p><p>Matters needing attention: 1. The hook of the puller should be hooked to the inner ring of the bearing, not to the outer ring, to avoid excessive loosening or damage of the bearing; 2. When using the puller, align the screw with the center hole of the shaft, and do not skew it. Attention should also be paid to the stress of the hook and bearing, and do not damage the hook and bearing; 3. Pay attention to prevent the pull hook from slipping; 4. The bending angle of the two legs of the puller is less than 90 °. Four, hot dismantling method Used to remove tight-fitting bearings. First, cast the oil heated to about 100 ℃ on the bearing to be disassembled with an oil pot. After the bearing ring is heated and expanded, the bearing can be pulled out with a pull tool. </p><p><br /></p><p>Matters needing attention: 1. First, the puller should be installed on the bearing to be disassembled, and a certain pulling force should be applied; 2. Before heating, the shaft should be wrapped with asbestos rope or thin iron plate to prevent the shaft from expanding due to heat, if not, it will be difficult to disassemble. When removing the bearing from the hole of the bearing box shell, the hole of the bearing box shell can only be heated, not heating Bearing 3. When pouring oil, the shielding machine room should pour the oil pot smoothly on the bearing ring or rolling body, and place an oil basin below it to collect the hot oil that has flowed down to avoid waste and burns; 4. The operator should wear asbestos gloves to prevent burns.</p></div>

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