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The correct use of the rolling bearing is a reliable guarantee to reduce bearing problems and extend the life of the bearing; its content contains the correct device and reasonable smoothness. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
The following is an analysis of the application requirements of rolling bearings and common faults and injuries.
First, the correct use of rolling bearings. The bearing should be cleaned and cleaned before the disassembly and assembly of the bearing; the special bearing should be used to press the auxiliary bearing straight and evenly; do not hit with a hammer; uniquely stop the tap directly on the bearing. When the bearing seat and seat When the hole cooperation is loose; the seat hole or replacement bearing should be corrected; do not use the method of pitting or padding on the bearing cooperation surface. The bearing should be pulled out with a suitable puller when the bearing is disassembled; do not use a chisel , hand hammer and other percussion bearings.
2. Smooth smoothing bearings for bearings commonly used smoothing agents are smooth oil and smooth grease. When the peripheral speed of the shaft is less than 4-5m / s; or the car can not use smooth oil smooth parts; all use smooth grease smooth. Smooth grease The smooth strength is that the sealing layout is simple; the smooth grease is not easy to lose; it is not affected by the temperature; adding a smooth grease can use a longer time.
The use of smooth grease should pay attention to two problems; first, according to the requirements of the car manual; choose smooth grease suitable for the trademark. For example; automotive water pump bearings should not use nano-smooth grease; because of its poor water resistance. Second, participate in the bearing Smooth grease should be excessive; usually only fill the bearing cavity 1/2-l/3 is appropriate; too much is useless; will also add the working resistance of the bearing; make it heat up. Unique attention should be paid to the automotive wheel bearing; To initiate "empty hub smooth"; that is, only apply a layer of excess smooth grease on the bearing; otherwise; not only bad and bad heat; it will also make the smooth grease overflow; can affect the braking function.
The smooth strength of smooth oil is frictional resistance. 20. è‹Œ (4) 龋 饕糜诟咚俸 饕糜诟咚俸 饕糜诟咚俸 ã·éª° ã·éª° 澄 澄 澄 澄 澄 å²¢ å²¢ å²¢ å²¢ å²¢ å²¢ å²¢ å²¢ å²¢ å²¢ 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑 光滑After releasing the old oil, the organization should be cleaned and then added with new oil; the fuel should be added to the regular marking line; or flush with the fueling port (depending on the detailed layout of the car, demand);
Second, the common problems of rolling bearings, rolling fault bearing defects usually appear in two; first, the bearing device parts temperature is too high; second, there is noise in the bearing work.
1. If the bearing temperature is too high during the organization work; the part of the bearing of the device promises a certain temperature; when the tissue is touched by hand; it should be normal without feeling the trick; otherwise, the bearing temperature is too high.
The reasons for the excessive bearing temperature are: the quality of the smooth oil does not meet the demand or the change; the viscosity of the smooth oil is too high, the structure is too tightly installed (the gap is lacking), the bearing is installed too tightly, the bearing race is changed on the shaft or the shell, and the load is over. Large, bearing cage or rollover fragmentation.
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Source: China Bearing Network Time: 2018-01-18