How to determine if SKF imported bearings should be replaced

The specific judgment method of whether the imported bearing should be repaired, that is, the specific judgment method that the imported bearing has been fully utilized and the damage is adjacent is as follows:

1) Using imported bearing working condition monitoring instrument

It is the most convenient and reliable method to judge the working state of the imported bearings and determine when the imported bearings should be repaired by using the instrument such as the iron spectrometer or the SPM or I-ID-1 type imported bearing working condition monitoring instrument.

For example, when using the HD-1 type instrument, when the pointer approaches the danger zone from the warning zone, and the pointer does not return after taking measures such as improving lubrication, it can be found that the problem of the imported bearing itself is not yet dangerous. When the zone is in place, the imported bearings will be repaired. How far from the danger zone begins to repair, can be adjusted by experience.

With such an instrument, it is possible to make full use of the working potential of the imported bearings, timely repair the imported bearings, and avoid failures, which is safe and economical.

2) Monitor with simple tools

In the case where the above instruments are not available, the operator can hold the tool such as a round bar or a wrench against the outer casing of the machine that is closest to the imported bearing, and shame the ear on the tool to monitor the running sound of the imported bearing transmitted by the tool. Of course, the medical stethoscope is modified. Also.

The normal imported bearing operation sound should be uniform, smooth and not harsh, and the abnormal imported bearing operation sound has various intermittent, impact or harsh sounds. First of all, we should get used to the normal operation of the imported bearings, and then we can grasp the abnormal operation of the imported bearings, and then through the accumulation of practical experience, we can further analyze what kind of abnormal sound corresponds to what kind of imported bearings. normal phenomenon. There are many types of abnormal sounds in imported bearings, which are difficult to tell, and mainly rely on experience accumulation.

For more information and purchase please visit: https://www.supplyforever.com

How to lubricate and maintain INA bearings

Germany INA bearings, pure quality, high precision products, hundreds of thousands of varieties, widely used in different environments and machinery, known as the "mechanical industry food" reputation, has more than 80 years of INA bearing production experience We continue to improve existing products, develop and develop new products, and always maintain a leading edge in technology. INA bearings are widely used in all walks of life, and their high-speed, high-precision spindle INA bearings enjoy a high reputation in the machine tool industry. All kinds of excellent characteristics are generally reflected in all INA bearings, and have a high limit speed and bearing capacity and cost performance. Lubrication has an important effect on the life of INA bearings, so we need to apply the correct lubrication and maintenance methods.

1, oil bath lubrication

Oil bath lubrication INA bearing common lubrication method, suitable for lubrication of low and medium speed INA bearings. A part of the INA bearing is immersed in the groove, and the lubricating oil is taken up by the rotating INA bearing part and then flows back to the oil groove. The oil level should be slightly lower than the center of the lowest rolling element.

2, drip lubrication

Drip oil lubrication is suitable for INA bearing parts that need to supply lubricating oil quantitatively. The amount of dripping oil is generally one drop every 3-8 seconds. Excessive oil quantity will cause the temperature of INA bearing to increase.

3, circulating oil lubrication

The filtered oil is sent to the INA bearing component by an oil pump, and then filtered and cooled by the lubricating oil after the INA bearing. Since the circulating oil can take away a certain amount of heat and cool the INA bearing, this method is suitable for INA bearing parts with higher speed.

4, spray lubrication

The dry compressed air is mixed with the lubricating oil through a sprayer to form an oil mist. In the INA bearing, the airflow can effectively cool the INA bearing and prevent the intrusion of impurities. This method is suitable for the lubrication of high speed, high temperature INA bearing components.

5, injection lubrication

The high-pressure oil is injected into the INA bearing through the nozzle by the oil pump, and the oil injected into the INA bearing flows into the oil groove through the other end of the INA bearing. When the INA bearing rotates at a high speed, the rolling elements and the cage also form a gas flow at the relatively high rotation speed of the surrounding air. It is difficult to send the lubricating oil to the INA bearing by the general lubrication method, and the lubrication must be performed by the high-pressure injection method. The oil is sprayed into the INA bearing and the position of the nozzle should be placed between the inner ring and the center of the cage.

For more information and purchase please visit: https://www.supplyforever.com