How to select the sliding NTN Bearing grease
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234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
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We usually selected 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. High-speed ntn bearing selection of cone penetration smaller, mechanical stability, good grease. 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, good water resistance to calcium-based, aluminum or lithium-based grease; selection of the better adhesion of grease.
Following is a sliding ntn bearings with grease load, journal circumferential speed and maximum working temperature range requirements analysis:
Load <1mpa journal circumferential speed of 1m / s below the maximum operating temperature of 75 ° C, use of calcium-based 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 of 1m / s below the maximum operating temperature of 50-100 ° C, selected No. 2 lithium base grease;
Load> 5mpa journal circumferential speed 0.5m / s, and maximum operating temperature of 60 ° C, the choice of the 2nd calender fat.
The correct choice of sliding ntn bearing grease on the effect of running is extremely useful. I hope in the future can be the right choice for grease.
ntn bearing load, low speed, the penetration of grease should be selected, on the contrary to the cone penetration. High-speed ntn bearing selection of cone penetration smaller, mechanical stability, good grease. 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, good water resistance to calcium-based, aluminum or lithium-based grease; selection of the better adhesion of grease.
Following is a sliding ntn bearings with grease load, journal circumferential speed and maximum working temperature range requirements analysis:
Load <1mpa journal circumferential speed of 1m / s below the maximum operating temperature of 75 ° C, use of calcium-based 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 of 1m / s below the maximum operating temperature of 50-100 ° C, selected No. 2 lithium base grease;
Load> 5mpa journal circumferential speed 0.5m / s, and maximum operating temperature of 60 ° C, the choice of the 2nd calender fat.
The correct choice of sliding ntn bearing grease on the effect of running is extremely useful. I hope in the future can be the right choice for grease.
