Everyday do NTN bearing maintenance needs to pay attention to details

A, touch the high temperature NTN bearing has often said in abnormal situation. High temperature and harmful to smooth the oil in the bearing. Sometimes, smooth bearing overheating can be attributed to the bearing of the agent, and the bearing temperature above 125 ℃ under long-term operation, reduce the use of the bearing life, formed the cause of the high temperature bearing include: smooth smooth deficiency or excess oil, smooth oil contains impurities, heavy load, bearing damage, the lack of space, and the oil seal to produce high temperature friction and so on. Therefore, continuous monitoring bearing temperature is necessary, whether or other important local measurement of bearing itself. If be in operating condition changes, no temperature change may attack problem. Bearing temperature measurement is often can help the thermometer can accurately measure the temperature of the bearing, and according to the degree. Important NTN bearing, is when it is damaged, will form equipment downtime, so this kind of bearing the best should be equipped with a temperature probe. Under normal conditions, bearing the smooth and smooth after natural temperature rise and continue a day or two. Two, see if you have a good smooth and bearing right debris and moisture barrier, said seal should not wear, however, had better be in open bearing box, by visual inspection and regular inspection bearing oil seal, bearing oil seal conditions around the check, make sure they lack in order to avoid the liquid or corrosive liquid or gas into the bearing along the axis. Maintenance and labyrinth seal ring smooth grease should be applied to maintain their largest maintenance. If the oil seal wear should change as soon as possible. The NTN bearing oil seal function in addition to avoid magazine, another function is to keep smooth bearing box. If oil seal leakage check oil seal has been wear and tear or pine. Leakage phenomenon can also be a form of bearing box joint looseness or smooth oil adding too much because the composition of the mixture and leakage detection, automatic smooth system to ensure that the correct amount of smoothing agent, and check whether the color or black, if there is such a phenomenon, usually smooth agent containing the magazine said. Three, listen to the use of auditory identify irregular running is a very common way. For example, with the aid of electronic stethoscope to listen to a local abnormal noise by experience rich operation way. If be in good working condition of bearings will lead to low hum the sound. If a sharp hiss, squeak and other irregular sound, commonly referred to as the bearing of the poor working conditions. Shrill creaking sound may be due to improper smooth. NTN bearing clearance may also form of metal. Bearing outer ring grooves on the tracks will produce vibration, and form a lubrication loud voice. If the device the percussion scar will produce noise, noise will be along with the speed of the bearing. If have intermittent noise, rolling element will be damaged. This sound is the date of the rolling bearing in the appearance, if the hiss of pollutants often form. Severe damage to the bearings will be irregular and noise. Bearing damage is to listen to know, but usually at once to the required a change in the bearing. Thus, a better way, for example, using such as electronic monitoring equipment, diagnosis of bearing running condition. 1: bearing is is made of smooth smooth, in full operation after 1500 hours, should be timely change fat, smooth demand in mind filling the right amount of oil demand, because the smooth fat too little or too much can cause bearing heating, amount to gen yu initiative at 1/2 ~ 2/3 of the bearing chamber volume is advisable. 2: using sodium based smooth fat motor bearing ( Mostly this type) Fat, this kind of smooth feature is the ability of high temperature ( 125℃) , defect is easy to dissolve in water, so water pump bearing the smooth is not suitable for complete. 3: used for containers of smooth smooth oil or grease to clean, normal should be sealed well, don't let the dust, iron and other sundry fall in it, so as to avoid damage to the bearings. 4: requirements for special attention to the point that new water pump put into use, the first time in 100 hours after operation should be timely change fat (smooth Oil) To change one, then working 500 hours. 5: about with smooth oil slick NTN bearing, oil should be added to the rules.