FANADE Industry(HongKong) Ltd,with annual output capacity of a large quantity of Low Price Fag 6303 Bearings
http://www.fagbearings-hk.com/product/FAG-6303-bearings-1739.html as well as 80 million sets of needle roller bearings and 2 billion of needle rollers,covers an area of 6200 square meters and construction area of 3500 square meters Its main product series include drawn cup needle roller bearings,drawn cup needle roller clutches,roller bearings,cylindrical roller clutches and ball bearing components,thrust bearings,roller bearings,linear motion guide roller bearing and rolling bodies(FANADE Bearing Seals Type include:RS,2RS,Z,2Z,2RZ,DDU,LLU,VV.Bearing Row:Single-Row,Double-Row,Four-Row) etc with imported and domestic famous brands including Swedish SKF bearings,German FAG,INA bearings,Japanese NSK bearings,Japanese NTN bearings,Japanese KOYO,FYH bearings,Japanese IKO bearings,American TIMKEN bearings,Britain RHP and other famous imported bearings.FANADE Bearing website provide Structure、Dimensions、Net Weight and all Parameter and Details of all kind of bearings.Here we'd like to talk about Prolong the service life of bearing method.
A, poor lubrication (about 50%)
According to the survey, poor lubrication is one of imported bearings of the main causes of premature failure. Main causes include: lubricant or improper selection of lubricating oil, failed to timely filling lubricant or lubricating oil; Lubricant or lubricating oil filling in place; And so on.
Suggestion: choosing the right lubricant or lubricating oil, use the correct lubrication filling way, to the bearing maintenance on a regular basis.
Second, the improper installation (about 16%)
1, use brute force, when installation directly with a hammer percussion imported bearing to bearing damage; Is the main cause of deformation.
2, installation does not reach the designated position, install a deviation or failure to the bearing, bearing clearance is too small. Inside and outside the circle is not in the same center of rotation, resulting in different heart.
Proposal: select the appropriate or professional NTN bearing installation tools, installed with a special instrument to detect.
Three, fatigue (about 34%)
Common fatigue failure reasons might be: bearing long-term overload operation; Failed to timely maintenance, or improper maintenance. Equipment aging, etc.
Four, pollution (about 14%)
Pollution can also cause pollution of the imported bearing premature failure, refers to dust, metal scraps into the bearing inside. Main causes include: early to open the bearing packing before use, cause pollution; When installation work environment is not clean, cause pollution; NTN bearing internal into impurities, not work properly.
The length of service life of bearing, usually by the material and process of these two factors.
Bearing material to a large extent determines the service life of the NTN bearing, ever bearing metallurgical quality is the main cause of premature failure of the rolling bearing. Influence on service life, bearing materials in metallurgy technology improved, bearing steel, there appeared after the material such as, are improved greatly.
Bearing failure analysis, the proportion of bearing failure caused by the raw materials has dropped sharply, but the material is the most important reason is still bearing failure, but also the main constraint factors of the service life of the bearing.
Bearing manufacturing complex, can get the finished product after a multi-channel processes, including forging, heat treatment, turning and grinding process of technology capability and complete quality, will affect the service life of the NTN bearing and its application effect, especially in heat treatment and grinding process, but also a lot of bearing the proximate cause of the failure to get production enterprise attaches great importance to.
Bearings after installation, in order to check if installed correctly, check for running. Small mechanical can rotate with the hand, to determine whether rotate smoothly. Check project has caused by foreign bodies, scars, creasing, seams as bad installation, the installation seat processing torque instability, because of his poor because of clearance is too small, installation error, seal caused by the friction torque is too big, and so on. If there is no abnormal can start power operation.
Large machines cannot manual rotation, so the no-load start immediately after truncation, mechanical idle, for vibration, noise, rotating parts have contact, etc., determine after no abnormalities, into power operation.
Power operation, from the beginning of the no-load speed, slowly to set forth the premise of the rated operation. Test run to check the items, if there are any abnormal sound, NTN bearing temperature, lubricant leakage or discoloration, and so on. If found abnormal, should immediately stop and check the mechanical, when it is necessary to remove the bearing inspection.
Bearing temperature, usually according to the external temperature of the bearing. But using the oil hole directly measuring the temperature of the NTN bearing outer ring more accurate. The bearing temperature, starting operation gradually increases, usually 1 ~ 2 hours after the temperature stability. If the bearing installation, the temperature will rise sharply, resulting from high temperature. The reason such as lubricant, bearing clearance is too small, too much bad installation, sealing device too much friction, etc. High-speed rotation, the choice of the ways of bearing structure, the lubrication error and so on is also the reason.
NTN bearing examination such as the rotation of the sound with a stethoscope, a strong metal noise, such as vision, irregular note that exception. Its reason has poor lubrication, shaft or precision bearing, bearing damage, foreign body into the bad, and so on.
