How to lubricate and maintain IKO bearing repair method

Core Tips: 1. IKO Bearing Cleaning When dismantling IKO bearing inspection, first record the bearing appearance, confirm the residual amount of the moisturizer, and then wash the bearing after sampling and checking the moisturizer. As cleaning
1, IKO bearing cleaning
    When removing the IKO bearing for inspection, first record the appearance of the bearing, confirm the residual amount of the moisturizer, and then wash the bearing after sampling and checking the moisturizer. As a cleaning agent, gasoline and kerosene are commonly used.
    The cleaning of the removed bearing is divided into coarse cleaning and fine fine washing. In the container, the metal mesh bottom is placed first, so that the IKO bearing does not directly contact the container. During rough cleaning, if the bearing is rotated with dirt, it will damage the IKO bearing rolling surface and should be noted. In the rough cleaning oil, use a brush to remove the moisturizing grease and sticks. After it is almost clean, transfer it to a fine wash.
    Fine washing is to carefully clean the IKO bearing while rotating it in the cleaning oil. In addition, the cleaning oil should always be kept clean.
2. Overhaul of IKO bearings
    In order to judge whether the removed IKO bearing can be reused, check the bearing after cleaning, carefully check the raceway surface, the rolling surface, the state of the mating surface, the wear of the cage, the increase of IKO bearing clearance and whether there is any Damage and abnormality with reduced dimensional accuracy. For non-separable ball bearings, use one hand to support the inner ring and rotate the outer ring to check if it is smooth.
1, oil bath moisturizing
   Oil bath moisturizing is the most common moisturizing method in IKO bearings, suitable for moisturizing low and medium speed bearings. Part of the bearing is immersed in the groove, the moisturizing oil is brought up by the rotating bearing parts, and then flows back to the oil groove. The oil level should be slightly lower than the center of the lowest rolling element.
2, dripping oil moisturizing
  Drip oil moisturizing is suitable for bearing parts that need to supply moisturizing oil quantitatively. The amount of dripping oil is generally one drop per 3-8 seconds. Excessive oil quantity will cause the bearing temperature to increase.
 3, circulating oil moisturizing
   The filtered oil is transferred to the IKO bearing component by an oil pump, filtered and cooled by the moisturizing oil after the bearing. Since the circulating oil can take a certain amount of heat to cool the bearing, this method is suitable for bearing parts with higher rotational speed.
4, spray moisturizing
  The dry compressed air is mixed with the moisturizing oil through a sprayer to form an oil mist. The IKO bearing is sprayed, and the air flow can effectively cool the bearing and prevent the intrusion of impurities. This method is suitable for the moisturization of high-speed, high-temperature bearing components.
5, spray moisturizing
The high-pressure oil is injected into the bearing through the nozzle by the oil pump, and the oil injected into the IKO bearing flows into the oil groove through the other end of the bearing. When the bearing rotates at a high speed, the rolling elements and the cage also form a flow of air around the air at a relatively high rotational speed. It is difficult to send the moisturizing oil to the IKO bearing by the general moisturizing method. At this time, the moisturizing oil must be sprayed by high pressure. Spray into the bearing and the position of the nozzle should be between the inner ring and the center of the cage!

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Method for preventing burning of diesel engine bearings

Core Tip: Methods to prevent diesel bearing burnout: Early damage to plain bearings is much more common than bearing burnout, so it is important to prevent early damage to the plain bearings. Proper maintenance of sliding bearings is reduced
Method for preventing diesel bearing bearing burnout:

Early damage to sliding bearings is much more common than bearing burnout, so it is important to prevent early damage to the sliding bearings. Proper maintenance of the sliding bearing is an effective way to reduce the early damage of the bearing and a reliable guarantee to extend the life of the bearing. Therefore, in the routine maintenance and repair of the engine, attention must be paid to the appearance of the alloy surface, the back end, the end and the edge of the bearing. If there is an abnormality or a sign of excessive wear, it is necessary to carefully identify the cause and take corresponding action. The measures to improve the working conditions of the bearing, pay attention to the prevention of early damage to the sliding bearing.

1. Strict measurement of the coaxiality and roundness of the main bearing bore of the diesel engine body. For the measurement of the coaxiality of the main bearing bore of the machine body, the coaxiality of the diesel engine body must be measured accurately, and the runout of the crankshaft is measured, so that the thickness of the bearing bush is selected, so that the oil lubrication gap is consistent in each axial position. . Where the diesel engine has been crushed, flying, etc., the coaxiality of the main bearing bore of the body must be checked before assembly. The total length of the ductile iron crankshaft is not more than 0.14mm, the total length of the steel crankshaft is not more than 0.12mm, and the body is bored. The roundness and cylindricity are also required. If it exceeds the limit, it is disabled. If it is within the limit, the grinding method is adopted (that is, the appropriate amount of red powder is applied to the bearing bush, and the crankshaft is loaded and then rotated, and then the bearing cap is removed to check the bearing bush, and the hard spot is convex. After the scraping process is performed, the amount of change in size is measured to ensure the reliability of use. Valve inlet pump industrial washing machine

2. Improve the maintenance and assembly quality of the bearings and strictly control the passing rate of the connecting rods. Improve the quality of the hinge of the bearing, ensure that the back of the bearing is smooth and spotless, and the positioning bump is intact;

3, its own elastic opening amount is 0.5 ~ 1.5mm, which can ensure that the bearing bush fits tightly with the bearing housing hole by its own elastic force after assembly;

4. It is required to measure the parallelism and distortion of the new and old connecting rods, and it is forbidden to get on the train for unqualified connecting rods;

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