Installation And Disassembly Skills Of Nsk Bearing
Installation And Disassembly Skills Of Nsk Bearing
2021年12月31日
Installation Method Of Tapered Hole Bearing In Skf Bearing
Installation Method Of Tapered Hole Bearing In Skf Bearing
2021年12月31日

Disassembly Of Ina Bearing

Disassembly Of Ina Bearing

The disassembly of INA Bearing shall be carried out with the same care as the installation. Pay attention not to damage ina bearings and parts, especially the disassembly of interference fit ina bearings, which is difficult to operate. Therefore, in the design stage, it is necessary to consider the convenience of disassembly in advance, and it is also very important to design and manufacture disassembly tools according to needs.

During disassembly, the disassembly method and sequence shall be studied according to the drawings, Disassembly Of Ina Bearing and the matching conditions of INA Bearing shall be investigated, so as to ensure the safe disassembly operation.

1. Removal of outer ring

Remove the outer ring of the interference fit. Set several outer ring extrusion screws on the circumference of the shell in advance. Tighten the screws equally while removing. These screw holes are usually covered with blind plugs, tapered roller ina bearings and other separated ina bearings. Several cuts are set on the housing shoulder. Use cushion blocks, disassemble with a press, or knock gently.

Disassembly Of Ina Bearing

2. Disassembly of cylindrical bore INA Bearing

The inner ring can be easily removed by pressure machinery. Disassembly Of Ina Bearing At this time, pay attention to make the inner ring bear its pulling force.

The inner ring of large ina bearing is disassembled by oil pressure method. Oil pressure is applied through the oil hole arranged on the shaft to make it Disassembly Of Ina Bearing easy to pull out. The INA Bearing with large width is disassembled by the combination of oil pressure method and drawing fixture.

The inner ring of Nu and NJ cylindrical roller ina bearings can be removed by induction heating. It is a method of Disassembly Of Ina Bearing drawing after heating part in a short time to expand the inner ring.

3. Disassembly of tapered bore INA Bearing

Disassemble the smaller INA Bearing with fixed sleeve, support the inner ring with the stop fastened on the Disassembly Of Ina Bearing shaft, turn the nut back several times, and knock it with a cushion block and a hammer.

For large INA Bearing, it is easier to disassemble by oil pressure. Pressurize and send oil in the oil hole on the taper hole shaft to expand the inner ring and disassemble the INA Bearing. In operation, INA Bearing Disassembly Of Ina Bearing may come out suddenly. It is better to use the nut as a stop.

The tapered hole bearing can be directly installed on the tapered journal, or it can be installed on the cylindrical journal with the tightening sleeve and disassembly sleeve as the intermediary. However, in any case, the interference of the inner ring of Disassembly Of Ina Bearing the tapered hole can be measured according to the reduction of the clearance of SKF Bearing.

The reduction of radial clearance is the difference between the radial clearance of SKF Bearing before and after installation. The original radial clearance of SKF Bearing shall be measured before installation, and the clearance shall be measured frequently during installation until the radial clearance reduction corresponding to the ideal interference is achieved

The measurement of radial clearance reduction

can also be replaced by the measurement of the propulsion of SKF Bearing on conical journal. For the standard taper of 1:12, the reduction of radial clearance is about 1 / 15 of the axial thrust. In this proportion, for the solid shaft, the interference of the mating surface is only 75% ~ 85%, which plays a role in expanding the inner ring.

The reduction of radial clearance of large spherical roller SKF Bearing and cylindrical roller bearing is usually measured with feeler gauge. Note that for spherical roller SKF Bearing, the radial clearance at the two rows of rollers must be measured from the two end faces respectively. Only when the clearance value at the two rows of rollers is the same, can the inner ring and outer ring be relatively positive.