We usually choose the sliding NTN Bearing lubrication lubricating oil, in fact, you can also use grease to lubricate only in the choice of grease to pay attention to some problems, as mentioned a few:
NTN Bearing load, low speed, the penetration of grease should be selected, on the contrary to the cone penetration. The high-speed NTN Bearing selection of cone penetration of grease, good mechanical stability. Of particular note is the low viscosity of the grease base oil.
Temperature requirements. The choice of grease dropping point is generally higher than the operating temperature of 20-30 ° C, in the case of high temperature continuous operation, attention should not exceed the temperature range allows the use of grease.
Sliding NTN bearing water washout or wet environment to work in, good water resistance to calcium-based, aluminum or lithium-based grease; selection of better adhesion of the grease.
The following sliding NTN bearings with grease in the load, journal circumferential speed and the maximum operating temperature range requirements analysis:
 
Load <1MPa journal circumferential speed of 1m / s, the following maximum operating temperature of 75 ° C, selected on the 3rd of calcium base grease;

Load 1-6.5MPa journal circumferential speed 0.5-5m / s, the maximum operating temperature of 55 ° C, selected on the 2nd calcium base grease;

Load> 6.5MPa, journal circumferential speed of 0.5m / s, below the maximum operating temperature of 75 ° C, selected on the 3rd of calcium base grease;

Load <6.5MPa, journal circumferential speed 0.5-5m / s, and maximum operating temperature of 120 ° C, selected No. 2 lithium base grease;

Load> 6.5MPa, journal circumferential speed 0.5m / s, below the maximum operating temperature of 110 ° C, selected on the 2nd of calcium - sodium grease;

Load 1-6.5MPa journal circumferential speed 1m / s, the following maximum operating temperature of 50-100 ° C, selected No. 2 lithium base grease;
 
Load> 5MPa journal circumferential speed of 0.5m / s, and maximum operating temperature of 60 ° C, the choice of the 2nd calender fat.  
The right choice for sliding NTN Bearing grease run effect is extremely useful. I hope in the future can be the right choice for grease.



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