Bearing demolition Note

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Bearing demolition and installation of the same carefully. Note that does not damage the bearings and parts, especially the interference fit bearing disassembly operation is difficult. So, at the des ign stage to be considered in advance to facilitate the demolition, demolition tools required design is also very important. Demolished, according to the drawing research and demolition methods, sequence, and investigated the co-ordination conditions in order to obtain the demolition job foolproof.china bearing
1, the outer ring disassembly
Demolition of interference fit of the outer circumference of the shell in advance to set several outer extrusion screw with a screwdriver, side equally tighten the screw, while the demolition. These screw holes are usually covered with blind plugs, separation of bearings, tapered roller bearings in the housing block on the shoulders to set up a few incisions, the use of pads, use press demolition, or tapping the demolition.
2, the cylindrical bore bearings demolition
The demolition of the inner pressure mechanical pull out the latest simple. At this time, pay attention to the inner ring to withstand the pulling force.angular contact ball bearing
Large bearing inner ring disassembly hydraulic method. Oil pressure through the hole in the shaft, so that easy to pull. The large width of the bearing oil pressure and drawing fixtures and the demolition job.
NU-NJ type cylindrical roller bearing inner ring disassembly by induction heating. Local heating in a short period of time, so that the inner expansion after drawing.
3, the tapered bore bearings demolition
The demolition of the small band tight sleeve bearings, the file block support inner fastening to the shaft, the nut back several times, use the pad with a hammer to beat the demolition.
Large bearings, the use of hydraulic demolition easier, sending oil pressure in the tapered bore axis of the hole, so that the inner expansion, the demolition of the bearing. Operation, the bearing may suddenly emerg e, best use the nut as a file block as well.ball thrust bearing