1) Wash the bearing with kerosene, press it into the bearing seat, fill the rollers of the outer ring of the bearing with Shell No. 3 lithium base grease to two-thirds full, spread it evenly with clean hands, install the ntn bearing gland, and use 2) The bearing is a cylindrical roller bearing with a separable inner and outer jacket, and the inner sleeve of the bearing should be placed on the rotating shaft and in place; 3) The bearing seat is installed on the casing, If there is a grease injection hole, align the position. Use the tightening bolts coated with bolt anti-loosening glue to fasten the bearing seat; 4) Install the inner and outer eccentric blocks on the rotating shaft and in place. If there is a shaft key, install the shaft key into the keyway and then install the outer eccentric block, and use a retaining ring for the shaft. Installed on the rotating shaft; 5) Tighten the fastening bolts of the fixed eccentric block, turn the adjustable eccentric block to the angular position before removal and tighten the fastening bolts. After the above assembly is completed, the rotating shaft should have a certain axial movement; 6) The protective covers at both ends of the upper vibration motor should be fastened with screws. The damage of the roller bearing can be said to be quite similar to spalling, indentation, corrosion, cracks, wear, etc., which will be reflected in the vibration measurement of the roller bearing. Therefore, by using a special bearing vibration measuring instrument, the magnitude of the vibration can be measured, and the specific situation of the abnormality can be inferred through the frequency distribution. The measured values ​​are different due to the conditions of use of the roller bearing or the installation position of the sensor, so it is necessary to analyze and compare the measured values ​​of each machine in advance to determine the judgment scale. Maintenance of roller bearings: thin oil lubrication: the advantage is that the internal friction coefficient is small, so the friction consumption is less, the thin oil has good fluidity, easy to enter the friction surface of each lubrication point, has a good cooling effect, and can adhere to the Impurities on the friction surface and metal particles due to grinding are carried away. The disadvantage is that the oil film cannot withstand large unit pressures, and the requirements for sealing are high. High-speed presses are generally lubricated with large-flow thin oil, which can take away the heat generated by each friction pair. With proper use of roller bearings, fatigue life can be achieved. But in the event of accidental early damage, it can no longer be used. Unlike fatigue life, this early damage is called a failure or accident. Most of them are caused by poor consideration of installation, use, and lubrication, foreign matter intruding from the outside, or insufficient research on shafts and bearing housings. The damage state of the bearing, such as the abrasion of the ring rib of the roller bearing, may be caused by insufficient lubricant, inappropriate grade, defective oil supply and discharge structure, foreign matter intrusion, bearing installation error or excessive deflection of the shaft. It may also be caused by a combination of the above reasons. Therefore, it is difficult to know the cause of the damage only by investigating the bearing damage. However, if you fully understand the machine, working conditions and external structure of the bearing, you can find out the situation before and after the failure, and then analyze the damage of the bearing and a variety of related reasons, you can prevent similar failures from happening again. From its name, you can guess what it looks like. The outer ring of the roller bearing adopts a full complement cylindrical roller bearing with a thick outer ring wall. The outer diameter of the roller has a cylindrical and arc shape, which can be It is designed to cooperate with the raceway surface according to the application. With this outer ring, the rollers can roll directly on the raceway and can withstand heavier loads and shock loads. Its advantage is that the coefficient of internal friction is small, so it consumes less to overcome friction, the thin oil has good fluidity, and it is easy to enter the friction surface of each lubrication point, which has a good effect, and can remove impurities adhering to the friction surface and due to grinding. The resulting metal particles are taken away.
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