NTN bearing application skills repair method

Source: China Bearing Network Time: 2014-07-05

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NTN bearings are many mechanical parts produced; and the precision of production is very strict; the degree of specialization of skills is very high; therefore, for most types of bearings that are simply bought; it should be more cost-effective than procurement; Under the following conditions; consider the bearing correction problem; namely:
(1) Many of the same types of bearings used in large factories; the failure modes are mainly the wear of the tumbling surface; fatigue or fretting abrasion; especially the damaged parts are mostly cages or tumbling bodies; and the ferrules or gaskets still have corrections. value,
(2) Large and extra large bearings; close to failure or failure of the parts without serious damage; or valuable NTN bearings need to try to extend their useful period of use,
(3) Some types of bearings that are difficult to purchase; there is no spare parts after failure and have to be repaired; especially imported bearings,
(4) The bearing has minor damage; for example, the fine rust that occurs during the inventory period; and the slight fretting abrasion that occurs during the transportation process; it is a pity that such condition correction is abbreviated.
In addition to economics; NTN bearing repair has its skill; this requires the repairer to fully understand the corresponding skill requirements of the bearing; and the characteristics of the bearing and its parts in terms of structure, process and data; otherwise it is difficult to guarantee the bearing Repair has the effect of meeting the demand.
The user is in the process of repairing the bearing; if you can get the cooperation of the professional bearing company; you will get the following advantages:
(1) the skill requirements of each process that can be clearly repaired; and how to ensure the overall quality of the repaired bearing;
(2) Being able to apply many specialized experiences of professional bearing plants; these experiences can reach the process requirements reliably, efficiently and economically.
(3) It is possible to order a mold for a professional bearing company; it can be used for repairing affairs; it can be economical and saves a lot of troubles.
(4) Can order from professional bearing companies such as cages; tumbling bodies, rivets and other accessories; can make the repairing work simple and convenient.
If the NTN bearing device is on the adapter sleeve; determine the direction of the bearing housing. The nozzle orientation of the bearing housing top cover should always be on the other side of the adapter sleeve nut. It is necessary to pay attention to the direction of the entire bearing housing; due to the top cover and the base Must be installed in the original direction.
1. Bearing installation and disassembly sometimes involve the handling of heavy objects, the use of things and other equipment, or the use of high pressure oil.
2. Guarantee the health.
3. View the scale and shape of the journal.
4. Look at the surface roughness Ra of the support surface is not more than 12. 5Î¼m. Flatness should be IT7. About the use of lower demand; available IT8.

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