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NSK outer ring, tapered hole, cylindrical hole bearing disassembly

Source: Bearing network time: 2018-04-21

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Bearing timing repair work is a necessary process; the same repair needs to take NSK imported bearings for protection and maintenance; therefore, after disassembly; if you want to continue to use or need to check for inquiries; It is the same as the device. It pays attention to not damaging the bearings and parts; especially the dismantling of the interference bearing; it is difficult to operate; so it is necessary to think beforehand in the drawing stage to facilitate the disassembly. It is also very important to open and disassemble according to the requirements. According to the drawings, the dismantling methods, the order, and the cooperation conditions of the bearings are discussed; so that the unpacking operation can be carried out smoothly.
The outer ring is disassembled and the outer ring of the interference cooperation is disassembled. Several threaded holes are provided on the circumference of the bearing seat in advance; for the device, the bolts are disassembled. The bearings are loosened by evenly tightening the bolts. These threaded holes are common Cover the blind plug. Tapered roller bearing and other separate bearings; set a few cuts on the bearing seat shoulder; use the block; use the press to open; or sneak open and disassemble.
The opening of the cylindrical hole bearing is opened with a press to make the inner ring the most simple. At this moment; pay attention to let the inner ring accept its pulling force.
Moreover; the puller is often used; no matter what kind of thing; its claws need to be firmly stuck on the end face of the inner ring. To do this; need to think about the shoulder dimension; or machine the groove at the shoulder; The inner ring of the large-sized bearing of the puller is disassembled and selected by the hydraulic method. The oil hole is arranged on the shaft; the high-pressure oil is introduced into the cooperation surface; the bearing with large width is easily pulled; the puller can be used together for unpacking operation.
The inner ring of NU type and NJ type cylindrical roller bearings can be opened by induction heating. This method is to heat the part in a short time; the inner ring is expanded and then pulled out. Induction heating is also used.
Disassemble the tapered bore bearing to disassemble the smaller type of adapter sleeve bearing; support the inner ring with the stopper fastened to the shaft; loosen the nut; pad the block; then use the hammer to hit the bushing to disassemble. Pulling the unloading sleeve. Use the lock nut to disassemble. In the case of difficult operation; set a plurality of bolt holes on the circumference of the nut; pull the bushing according to the screw.
Large bearing; the use of hydraulic disassembly is more and more simple. Pressurize the oil in the oil hole on the cone shaft; make the inner ring swell; disassemble the bearing. Avoid the bearing falling during operation; also use the hydraulic nut to open the lining Set. Use hydraulic nut to open the bushing.

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