The performance of the sliding NTN bearing grease analysis - bearing knowledge

1, sliding NTN bearing can also be used lubricating grease, should consider the following points: when choosing grease ( 1) NTN bearing load, low speed, small grease should choose cone into the degree, on the other hand to choose large cone into the degrees. High-speed NTN bearing choose cone into the degree of small, good mechanical stability of grease. Pay special attention to the lower the viscosity of base oil of the grease. ( 2) Choose the drop point of the grease generally higher than 20 - working temperature 30 ℃, at high temperature under the condition of continuous operation, be careful not to exceed the allowed to use the temperature range of the grease. ( 3) Sliding NTN bearing in water or damp environment, should choose water resistance good calcium, aluminum or lithium base grease. ( 4) Has a good adhesion of grease. 2, sliding NTN bearing grease choice: load & lt; 1 mpa, shaft neck circumference speed 1 m/s, under the highest working temperature 75 ℃, choose 3 calcium base grease; Load 1 - 6. 5 mpa, shaft neck circumference speed 0. 5 - 5 m/s, the highest working temperature of 55 ℃, choose 2 calcium base grease; Load & gt; 6. 5 mpa, shaft neck circumference speed 0. Below 5 m/s, the highest working temperature 75 ℃, choose 3 calcium base grease; Load & lt; 6. 5 mpa, shaft neck circumference speed 0. 5 - 5 m/s, the highest working temperature 120 ℃, choose 2 lithium base grease; Load & gt; 6. 5 mpa, shaft neck circumference speed 0. Below 5 m/s, the highest working temperature 110 ℃, choose calcium - 2 Sodium based grease; Load 1 - 6. 5 mpa, shaft neck circumference speed below 1 m/s, the highest working temperature - 50 100 ℃, choose 2 lithium base grease; Load & gt; 5 mpa shaft neck circumference speed 0. 5 m/s, the highest working temperature 60 ℃, choose 2 calender fat;