INA overall eccentric bearing noise elimination method

The metallurgical quality of bearing materials used to be a major factor affecting the early failure of INA bearings. With the improvement of metallurgical technology (such as vacuum degassing of bearing steel), the quality of raw materials is improved. The proportion of raw material quality factors in the overall eccentric bearing failure analysis has dropped significantly, but it is still one of the main factors affecting bearing failure. The proper selection of materials is still a factor that must be considered in bearing failure analysis.

The main task of bearing failure analysis is to find out the main factors causing the failure of INA bearing based on a large amount of background materials, analysis data and failure modes, so as to propose improvement measures in a targeted manner and extend the service life of spherical roller bearings to avoid The bearing has a sudden early failure.

The vibration of the bearing has a significant effect on the failure of the bearing. For example: spalling, indentation, corrosion, cracks, wear, etc. will be reflected in the INA bearing vibration detection. Therefore, by using a special overall eccentric bearing vibration measuring device (frequency analyzer and vibration) The instrument can measure the magnitude of the vibration. The frequency of the vibration can be inferred. The measured value of the abnormal vibration is different depending on the premise of the INA bearing or the installation position of the sensor. Therefore, it is necessary to analyze and compare the measurement values ​​of each machine in advance. After determining the judgment scale.

1. Reason: The overall eccentric bearing has low precision. The method selects the bearing with the specified accuracy grade.

2. Reason: The spindle is bent or the hole of the box is different. The method is to repair the spindle or the box.

3, the reason: the belt is too tight method: adjust the belt to make the elastic appropriate

4. Reason: Poor lubrication method: select the lubricating material of the specified grade and clean it properly.

5, the reason: low assembly quality method: improve assembly quality

6, reason: bearing inner casing running method: replacement of bearings and related wear parts

7. The axial force is too large. Method: Clean and adjust the clearance of the sealing ring. Between 0.2 and 0.3mm, correct the balance of the impeller and verify the static balance.

8, bearing damage method: replace INA bearinghttps://www.supplyforever.com/

How to maintain the stability of FAG imported bearing grease

In the process of using FAG bearings, especially when lubricating the bearings, pay attention to the amount of grease. If you use grease precisely, ask everyone to understand the movement of the grease in the bearing 6316-2RS to ensure the stability of the grease. The movement of the grease filled in the rolling bearing, followed by the modification of the FAG bearing, can be roughly divided into two stages.

The divergence of grease in the bearing is a divergence in the contours of the bearing. It must be composed of a relatively straight draft. It should be short-lived. The bearing temperature is low and stable during long-term operation. This is a more imaginative lubrication. Grease, so it is especially important for the grease.

In the popular situation, the amount of grease filled in the FAG bearing always surpasses the practical requirement of direct intervention lubrication, saturating the cavity on the frame and the bearing cover, and forming a contour on the periphery of the rolling element. During this process, the bearing temperature rises rapidly due to the resistance of excess grease. Although most of the excess grease is squeezed out at the beginning of the run, the grease that is squeezed into the raceway attachment may still be transferred to change the rolling element into the raceway.

In the early stages of bearing operation, most of the grease is squeezed out of the raceway very quickly (less than one minute), and accumulated in the grease retaining body after the bearing migration transition body, and is discharged a small amount. At this time, the bearing temperature will continue to rise until the excess grease is completely discharged. It can be called the grease's running phase. According to the grease quality and filling amount in the bearing structure, this time may last for ten minutes. And even hours.

When grease is added to anti-friction bearings, high pressure theory may not be required unless it is used with great care. High pressure can damage bearings and waste grease. Excessive grease can cause high temperatures and create an invisible environment around FAG bearings. In most applications, ball or roller bearings are fully lubricated if the grease level is between one-third and one-half of the bearing capacity. The excess will usually be wasted by the sealed casing.

The anti-friction bearings in all FAG bearings basically contain two hardened steel rings, a plurality of hardened balls or rollers, and a separator or cage that separates the rollers or rollers. These types are divided into many categories in use. Some types, such as needle-like column bearings, may have no inner ring and the rollers move directly on the hardened shaft.https://www.supplyforever.com/