| Home>Bearing knowledge>Expanding the utilization rate of koyo bearings and the replacement of smoothing agents |
Expansion koyo bearing utilization rate and smoothing agent replacement
| /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089'; |
(1) The problem of the life expectancy of imported bearings is widely used in ball bearings in passenger car gearboxes; the original service life is shorter than the extra life calculated according to the standard method juice; the performance is early fatigue and high noise. The life of bearings in other parts of the car is higher than the extra life.
(2) Analysis of the cause of the failure of the imported bearing After examination, the quality of the gearbox was outstanding; the bearing device cooperated normally; it was smooth and plentiful; it was originally suspected that the smooth oil did not enter the upper part of the bearing. However, all the inner ring channels were pressed. Traces or craters or surface cracking type fatigue; not subsurface detachment damage; do not cause such an appearance when the oil is abundant.
It was found that the outer surface of the channel was mixed with metal particles such as iron, copper, aluminum and zinc, and non-metal scraps such as rubber, sand and plastic.
Discrimination: These foreign objects and the indentations they formed damage the integrity of the oil film; the fatigue that caused the early failure of the imported bearings was verified by experiments; the above discrimination is correct.
(3) The solution to the failure of koyo bearings has been adopted to increase the steel ball type, special heat treatment type and even double row ball type and vacuum remelting steel bearings; the value is more and more valuable; and the life progress is not large.
Finally, it was developed into a "sealed hygienic" type bearing; it has achieved great success. This kind of bearing is a special rubber sealing ring on each side of the original specification bearing; the characteristic is that the sealing ring is mainly used to avoid dirt. Intrusion into the bearing; not the same as the bearing seal that is primarily intended to adhere to grease.
Second, the replacement of the smoothing agent when the koyo bearing temperature exceeds 70 ° C; the bearing temperature rises by 15 ° C; it is necessary to use the smooth grease to make up the half of the interval. The double-sided closed bearing is now loaded with grease; “HRB†is used in these products to regulate smooth grease; the common working temperature scale and other functions are suitable for the regular occasions; and the amount of grease is also corresponding to the bearing size; the service life of the grease can usually exceed the bearing life; Except for special occasions; no need to make up for smooth grease.
The smoothing oil replacement cycle of koyo bearings is different depending on the application conditions and the amount of oil; usually, it is used at an operating temperature of 50 ° C or less; in an excellent environment with little dust; once a year; when oil When the temperature reaches 100 °C; replace it once every 3 months or less.
Recommend to friends comments close window
| Bearing related knowledge |
| The key to the selection of FAG bearing types in the inspection and fault handling of SKF imported bearing operations NTN imported bearing and shaft cooperation testing skills analysis of Shandong Xinyou seven types of bearing characteristics and layout characteristics of the steel ball mill main bearing expansion large gap is too small |
This article links to http://
Please indicate the bearing network http://
Previous: Which bearings are commonly used in reducers? Next: Refined-SKF bearing type search
Ozone is a chemical substance with the chemical formula O3. It is a strong oxidant with strong oxidizing ability. In the atmosphere, ozone is an important gas component that can participate in atmospheric chemical reactions and has an important impact on air quality and ecological environment.The principle of the ozone sensor is based on the electrochemical detection principle. Generally speaking, an ozone sensor consists of a working electrode, a reference electrode and an electrolyte. The working electrode and the reference electrode are connected through an electrolyte and immersed in the electrolyte. When ozone enters the interior of the sensor, it reacts with water molecules in the electrolyte to produce oxygen and hydrogen ions. These hydrogen ions generate an electric current on the working electrode, the magnitude of which is proportional to the ozone concentration. By measuring changes in electrical current, the concentration of ozone can be determined. Hydrogen peroxide sensors have a wide range of applications. It can be used for oxidant concentration detection in industrial process control, such as water treatment, food processing and pharmaceutical industries. In addition, hydrogen peroxide sensors can also be used in the medical field to detect hydrogen peroxide concentration in the human body, such as the correlation between hydrogen peroxide concentration in the blood and diseases. In addition, hydrogen peroxide sensors can also be used in the fields of environmental monitoring and food safety. If you want to buy online Ozone sensors, please contact us!
Ozone Sensor,Water Ozone Sensor,Ozone Sensor Probe,Dissolved Ozone Probe
Suzhou Delfino Environmental Technology Co., Ltd. , https://www.daruifuno.com