INA spherical roller bearing lubrication is good or bad for working conditions

As one of the imported bearings, INA bearings, in the normal operation process, how to properly lubricate the bearings, bearing maintenance and maintenance is an important part that can not be ignored.

Smooth oil bath is the most common smooth way in bearings, suitable for the smoothness of low and medium speed bearings. A part of the bearing is immersed in the groove, the smooth oil is brought up by the rotating spherical roller bearing part, and then flows back to the oil groove oil surface should be slightly lower than the center of the lowest rolling element.

The drip smooth is suitable for the bearing parts that need to be quantitatively supplied with smooth oil. The amount of oil dripping is preferably every 3-8 seconds. Excessive oil quantity will cause the bearing temperature to increase.

The oil is pumped to the INA bearing component by an oil pump, filtered and cooled by the smooth oil after the bearing. Because the circulating oil can take away a certain amount of heat and cool the bearing, this method is used for the spherical roller bearing parts with higher rotation speed.

The use of boring shrinking air is mixed with smooth oil through a sprayer to create an oil mist. In the radial bearing, the air flow can effectively cool the bearing and prevent the intrusion of impurities. This method is suitable for the smoothness of high speed and low temperature bearing components.

The low pressure oil is injected into the bearing through the nozzle by the oil pump, and the oil injected into the bearing flows into the oil groove through the other end of the bearing. When the bearing rotates at high speed, the rolling element and the cage also cause airflow around the surrounding air at a relatively high rotational speed. It is difficult to send the smooth oil to the bearing in a smooth manner. In this case, it is necessary to spray the smooth oil with low-pressure radiation. In the bearing, the position of the nozzle should be placed between the inner ring and the center of the cage.

1) Compared with roller bearings, ball bearings have higher limit speeds, so ball bearings should be preferred when moving at high speeds.

2) Under the condition of the same inner diameter, the smaller the outer diameter, the smaller the rolling element, and the smaller the centrifugal inertia force of the rolling element on the outer ring raceway during running, the more suitable for higher speed. Work under. When placed at high speed, it is advisable to use ultra-light, extra-light and light series bearings. Spherical roller bearings for heavy and extra heavy series are only used for low speed and heavy load applications. If a light series INA bearing is used and the bearing capacity is not up to standard, a wide series of bearings can be considered, or two light series bearings can be used together.

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Assembly, disassembly and maintenance of KOYO imported bearings

1. KOYO imported bearing maintenance: In order to maintain the original performance of KOYO imported bearings in good condition for as long as possible, maintenance, overhaul, and accident prevention are required to ensure the reliability of operation and improve productivity and economy.

Maintenance is best carried out on a regular basis in accordance with the operating standards for the mechanical operating conditions. The content includes monitoring of operating conditions, replenishment or replacement of lubricants, and periodic disassembly inspections. The maintenance items in operation include the rotation sound, vibration, temperature, and lubricant status of KOYO bearings.

2. Inspection of KOYO imported bearings: Cleaning of bearings: When disassembling KOYO imported bearings, first record the appearance of KOYO imported bearings, confirm the residual amount of lubricants, and wash the bearings after sampling and checking lubricants. As a cleaning agent, gasoline and kerosene are commonly used.

The cleaned KOYO bearings are cleaned and cleaned separately, placed in a container, and placed on the bottom of the metal mesh so that the bearings do not directly touch the dirt of the container. When rough cleaning, if the bearing is rotated with dirt, it will damage the rolling surface of KOYO bearings, and should be noted. In the rough cleaning oil, use a brush to remove the grease and the adhesive. After it is almost clean, it is transferred to the fine wash.

Fine washing is to carefully clean the KOYO bearings while rotating in the cleaning oil. In addition, the cleaning oil should always be kept clean.

3. Inspection and judgment of KOYO imported bearings: In order to judge whether the removed KOYO bearings can be used, it is necessary to check after the bearings are cleaned. Check the raceway surface, the rolling surface, the state of the mating surface, the wear of the cage, the increase of KOYO's imported bearing clearance, and the damage and abnormality with irrelevant dimensional accuracy. For non-separable miniature ball bearings, use one hand to support the inner ring horizontally and rotate the outer ring to check if it is smooth.

Separate bearings such as tapered roller bearings can be inspected separately for the rolling surfaces of the rolling elements and the outer ring.

Large bearings cannot be rotated by hand. Pay attention to the appearance of rolling elements, raceways, cages, ribs, etc. The higher the importance of KOYO bearings, the more careful inspection is required.

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