Introduce the precautions for NSK bearing grease selection
In order to better play the best condition of NSK bearing, the choice of NSK bearing grease is directly related to the stable operation of the equipment. The choice of NSK bearing grease must be considered from the following aspects:
1. Anti-rust performance
The rust inhibitor is preferably insoluble in water. Grease should have good adhesion, and the grease used in NSK bearings must have anti-rust effect. And can form a layer of oil film on the steel surface.
2. Mechanical stability
Causes a leak. In normal operation, the grease will become soft during machining. Grease will pass from the bearing housing to the NSK bearing. If the mechanical stability of the grease is insufficient, during the operation, the structure of the soap of the grease will mechanically disintegrate, causing the grease to be destroyed, thereby losing the lubricating effect.
3. Oil seal
Oil seals are necessary to protect NSK bearings and lubricants from external contamination during NSK bearing operation. No matter whether debris or moisture can penetrate into the NSK bearing to prevent damage. Proper equipment maintenance is an important factor in the longest life of NSK bearings. At the same time, it is necessary to pay attention to the cleanliness of the bearings, the correctness of the NSK bearing selection and the selection of appropriate equipment and maintenance tools. In addition, the bearings must be protected from contaminants and moisture and ensure proper installation and lubrication. Therefore, the design of the NSK bearing, the condition of the oil seal, the type of lubricant and the lubrication cycle, and even the special support play the same and important role.
4. Mixed grease
If two incompatible greases are mixed, never mix incompatible greases. Usually its consistency will become soft, and in the end it may cause damage to the NSK bearing due to the easy loss of grease. If you don't know which grease the bearing originally used, you must completely remove the old grease inside and outside the NSK bearing before adding new grease.https://www.supplyforever.com/