In the process of using fag bearings, grease is very critical. If Method For deteriorated grease is used, it will not only fail to play its due role, but also damage fag bearings.
① Oil flow observation method
Take two measuring cups, one Method For containing the lubricating oil to be checked and the other empty on the table. Lift the measuring cup filled with lubricating oil 30-40 cm away from the table and tilt it, let the lubricating oil flow slowly into the empty cup, and observe its flow.
The lubricating oil with good Method For quality should flow slender, uniform and continuous. If the oil flow is fast and slow, sometimes large pieces flow down, The lubricating oil has deteriorated.
② Hand twisting
Twist the lubricating oil between the thumb and index finger and grind it repeatedly. The better Method For lubricating oil hand feels lubricity, less wear debris and no friction.
If it feels a large friction feeling such as sand particles between the fingers, it indicates that there are many impurities in the Method For lubricating oil and it can not be used again. It should be replaced with a new lubricating oil.
③ Illumination method
On sunny days, lift up the lubricating oil with a screwdriver at an angle of 45 degrees to the horizontal plane. Observe the Method For condition of oil drops according to the sunlight. In the light, it can be clearly seen that there is no wear debris in the lubricating oil. It can continue to function. If there are too many wear debris, replace the lubricating oil.
④ Oil drop trace method
Take a clean white test paper and drop several drops of oil on the Method For test paper. After the lubricating oil leaks, if there is black powder on the surface and there is a sense of astringency by hand, it indicates that there are many impurities in the lubricating oil. Good lubricating oil has no powder, and it is dry and smooth by hand with yellow marks.
Anti friction SKF bearings are divided into two main types. They are ball SKF bearings and roller SKF bearings. At the same time, Method For we should also know that due to the different manufacturers and specific uses of SKF bearings, many different types have evolved according to these basic structures and.
Lubrication function, anti-wear lubricant has the following main functions
1. Lubricate the sliding contact between the retainer and other parts of SKF Bearing.
2. Lubricate any contact between the race and the roll that is not really rolling.
3. Lubricate the sliding contact between the roller and the middle part of the roller type SKF Bearing.
4. Lubricate all true rolling contacts in SKF bearings.
The secondary functions are:
5. Protect highly refined surfaces from corrosion.
6. Assist the sealing cover to prevent foreign substances. Grease has this function.
7. A means of conducting heat (cold) is provided.