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Check in the operation of the bearing is very important, can not be ignored, the main check bearing rolling sound, vibration, temperature, lubrication condition and so on. We first briefly introduced the rolling sound, IKO bearing, size and quality of rolling sound check should use the acoustic measuring inspection of automobile bearing in operation, with advanced tools will figure out exactly where the problem is, bearing even a slight separation of the injury, also issued abnormal sound and irregular sound, with sound measuring device can distinguish.
Then check the bearing vibration, have a look the bearing damage is very sensitive, whether spalling, indentation, rust, crack, wear will be reflected, in the measurement of bearing vibration so, through the use of automobile special measuring bearing vibration (frequency analyzer etc) can be measured by the size of the vibration, the frequency cannot be inferred the abnormal situation. However, numerical each machine measured by IKO bearing conditions of use or sensor installation location and different, therefore require prior to each machine measurement comparison criteria.
1, the use of bearing, connecting the surrounding environment clean, do not stick to sweat and dirt. Delineated using by understanding bearing staff, especially be careful acid, indentation, damage etc.. To ensure the bearing use function, should be in accordance with the equipment work scale, timely protection, care and inspection of bearing, form includes monitoring operation, smooth agent, to check for assembly.
2, the bearing shall be stored directly on the ground (for ground 30cm above), prevent the direct light and cold wall. In order to prevent rust, keeping the following at a temperature of 20 ℃, 65% humidity, automobile bearing arrangement in the acidic environment, easy to rust, discoloration, to use gloves, cotton waste wipe bearing, shaft, bearing housing, refuse to enter the IKO external and common department is to produce abnormal reasons, is necessary to carefully.
3, the bearing measurement deviation, should be for the public service in 10% as follows. The general measurement deviation military value of 10% ~ 33%, and follow the public service grade of progress deviation, the greater the proportion of public service, i.e. smaller deviation, the higher proportion of automobile bearing, and public service over IT5, very difficult to reach 10%. The measurement errors not only means that the inspection tolerances can be relaxed to 10%, but the safety margin is necessary, to ensure that the user according to scale acceptance.
Used in the examination before also some and check 4, bearing block, scales and measuring instrument with a metal plate in the examination arrangements in such occasions, can quickly make the homogenization temperature and room temperature of these objects. IKO has dry or drying of bearing, should be in accordance with the provisions of drops of oil and immediately to check, the bearing of non oil film protection, in all the inspection process shall be straight fight and hand skin, the operator should wear clean gloves, or hand coated with anti rust agent, but must turn the situation to prevent anti rust agent on mixing of automotive bearings, or will make the measurement result.
The temperature of the bearing general bearing outside of room temperature can be speculated that, because of the relatively simple, if the uses of oil hole can directly measure the temperature of the bearing outer ring, the more appropriate. Usually, the temperature of the bearing with running slowly rising, reach a steady state after 1-2 hours. The normal temperature of IKO bearing due to the heat capacity, the machine heat dissipating capacity, speed and load and different. If the lubrication, install appropriate, bearing temperature will rise rapidly, there will be abnormal high temperature, then we must stop, take the necessary preventive measures. Based on a large amount of test data, the effects of temperature, speed, load, lubrication environment, so you should use heat sensors can monitor the automobile bearing operating temperature, and the temperature exceeds the set value automatically alarm households or stop to prevent burning shaft accident.