Bearing routine maintenance should pay attention to the details
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| Time：2016.08.31 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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A touch
High temperature bearings are often expressed in unusual circumstances. Heat and harmful to the bearing lubricant. Sometimes, bearing overheating can be attributed to the bearing lubricant, and in the long-running bearing Chaoguo 125 ℃ temperature, reduced bearing life, the cause of high temperature bearings include: lack of lubrication or excessive lubricating oil containing impurities , heavy-duty, bearing damage, lack of space, high temperatures and seal friction. Thus, continuous monitoring bearing temperature is necessary, either by itself or measure other vital parts of the bearing. If there is no change in business conditions, any temperature changes may be defective.
Bearing temperature measurements can often help thermometer can accurately measure the temperature of the bearing, and in accordance with the degree. Important bearing when it is damaged, it will cause equipment downtime, so these bearings should preferably be equipped with a temperature probe. Under normal circumstances, the bearing lubrication and lubricate natural temperature rise and last a day or two.
Second, observe
If you have a good lubrication and the right barrier of debris and water bearing, said seal should not wear, but preferably in an open bearing housing to visual inspection and periodic inspections bearing seals, bearing seals around the inspection conditions, to ensure that they not enough to prevent liquids or corrosive liquids or gases from entering the bearing along the axis. Protection ring and labyrinth seals should be coated with grease to protect its maximum protection. Seal if worn should be replaced as soon as possible. Oil sealing function in addition to preventing the magazine to the bearing, the other function is to maintain lubrication of the bearing housing. If the seal leaks immediately check the seal is worn or loose oil release plug. Leakage phenomenon may also be caused by loose connections or due to the bearing housing lubricating oil adding too much mixing and forming leak detection, automatic lubrication system ensures the correct amount of lubricant and to examine whether color or black, if there is such a phenomenon, generally speaking lubricants containing magazine.
Third, listen
Irregular operation using auditory recognition method is common. For example, by means of an electronic stethoscope to listen to a portion of abnormal noise by experienced method of operation. If it will make a low hum of voices bearing in good working condition. If a sharp hiss, squeak and other irregular sounds, commonly referred to as bearing bad working conditions. Creaking sound raspy may be due to improper lubrication. Improper bearing clearance may also be caused by metallic sound. Dent bearing outer race track will vibrate and cause a smooth and crisp sound. If installed percussion scar will generate noise, the noise will vary the speed of the bearing. If there are intermittent noise, the rolling elements can be damaged. This is the sound occurs at the surface of the rolling bearing date, hiss if contamination is often caused. Severely damaged bearing will produce irregular and noise.
Bearing damage listen consciousness, but usually at this time have come to replace the bearing. Therefore, a better way, for example, such as electronic monitoring devices, diagnostic bearing running.
1: Mobile bearings are lubricated with grease, after running over 1,500 hours should be timely replacement of grease filling should be noted that the amount of oil required amount, because too little or too much grease can cause bearing fever, Year-proposed to maintain the amount of fuel in the bearing chamber volume of 1/2 to 2/3 is appropriate.
2: Na-motor bearing grease (mostly of this type), this grease is characterized by high temperature (125 ℃), the disadvantage is easy to dissolve in water, so the water pump bearing lubrication is totally inappropriate.
3: used for holding oil or grease containers should be clean, usually should be sealed, do not let dust, iron filings and other debris that fell among avoid damage to the bearings.
4: the need for special attention to the fact that the new pump into use for the first time after 100 hours of operation shall be promptly replaced grease (oil), then to 500 hours of operation to replace a time.
5: For the use of lubricating bearings, oil should be added to a predetermined position.
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