Bearing disassembly precautions

Update:2017-10-16

   According to different parts to take a different approach. Based on past experience to make the following summary:
   1, remove the outer ring.
   Remove the interference with the outer ring, in advance on the circumference of the shell set up several outer ring squeeze screw with a screw, one side of the screw tightening, while the demolition. These screw holes are usually covered with blind plugs, tapered roller bearings and other separators, in the case of the shoulder to set a few cuts, the use of pad, with a press disassembly, or gently tapping the demolition.
   2, remove the cylindrical hole bearing.
   The inner ring of the demolition, you can use the pressure mechanical pull out the latest simple. At this point, we should pay attention to the inner ring to bear its pull force. Large bearing inner ring with hydraulic method. Through the oil hole provided in the shaft to be oil pressure, so easy to pull. Large size of the bearing is the oil pressure and pull the card and use, for demolition operations. NU type, NJ cylindrical roller bearing inner ring can be used to remove the induction heating method. In a short time to heat the local, so that the inner ring after the expansion method.
   3, remove the cone hole bearings.
   Remove the smaller sleeve with adapter sleeve, with the fastening on the shaft of the block to support the inner ring, the nut back several times, the use of pad with a hammer to knock demolition.
   Large bearings, the use of hydraulic demolition easier, in the cone hole on the oil hole in the oil pressure, so that the inner ring expansion, removal of the bearing method. In operation, there may be a sudden out of the bearing, it is best to use the nut as a gear as well.
    
Bearing the demolition process should pay attention not to damage the bearings and parts, especially the interference with the bearing disassembly, the operation is difficult. Therefore, in the design phase to take into account in advance to facilitate the demolition, according to the need to design and manufacture of demolition tools is also very important. In the demolition, according to the drawings to study the demolition method, the order, to investigate the bearing with the conditions to obtain the demolition operations foolproof.

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