1, anti-rust performance
The grease used in NTN thrust ball bearings must have an anti-rust effect, and the anti-rust agent should preferably be insoluble in water. Grease should have good adhesion and form an oil film on the surface of the steel.
2, mechanical stability
Grease becomes soft during machining and causes leakage. During normal operation, the grease will be raked into the NTN thrust ball bearing by the NTN thrust ball bearing housing. 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 seal is a necessary barrier to protect NTN thrust ball bearings and lubricants from external contamination. During the operation of NTN thrust ball bearings, no matter whether debris or moisture can penetrate into NTN thrust ball bearings to prevent damage. Proper installation and maintenance is an important factor in maximizing the service life of NTN thrust ball bearings. At the same time, attention must be paid to the cleanliness of NTN thrust ball bearings, the correctness of NTN thrust ball bearing selection, and the selection of appropriate installation and maintenance tools. In addition, NTN thrust ball bearings must be protected from contaminants and moisture and ensure proper installation and lubrication. Therefore, the design of the NTN thrust ball bearing, the condition of the oil seal, the type of lubricant and the lubrication cycle, and even the special maintenance play the same and important role.
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