Types of performance and the importance of the rolling mill bearing lubrication

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1, the importance of lubrication
Bearing lubrication film of the relative motion of the rolling surface separated from each other, not lead to excessive wear and failure due to rough point contact. Users, such as attaches great importance to the bearing lubrication technolog y, you can guarantee to be given during the working life, to maintain stable performance and rotation accuracy.

2, the type and performance of the grease
Mill bearing lubrication is divided into the grease and oil lubrication, grease lubrication facilities, grease is not easy to leak, there is a certain amount of water, gas and other contaminants entering the bearing capacity, so widely used grease lubrication under normal circumstances. In the working condition of overload, high-speed, high temperature oil lubrication.crossed roller bearing
Grease is the base oil, thickening agents and additive composition. Base oil viscosity plays an important role in the lubrication properties of grease, the thickener composition on the lipid properties, especially temperature characteristics, water resistance, analysis oily, filling additives used to enhance grease anti gasi fication, rust and extreme pressure performance.
Grease according to the type of thickening agent to classify into lithium based, sonar and other variety. Rolling mill bearings used lithium grease, the characteristics of the lithium based greases have good water resistance, high dropping point, you can use in damp and mechanical parts in contact with water. Greases according to their mobility, penetration divided into several levels. Penetration the greater the value, indicating that the softer the grease.slewing ring bearing
Domestic production of roller bearing grease is a compound formed by the fatty acid and synergist multiple Lithium Complex Grease also applies to the lubrication of the rolling mill bearing.

Grease filling
Grease fill one-third and half fill the bearing and the bearing shell space is appropriate, if too much fat - stirring sweep heat wil l lead to fat deterioration deterioration or Chin. Speed ​​should only be filled to one-third or less. When the speed is very low, in order to prevent the external differences physics into the bearing, you can fill up the shell space.

4, the replacement of grease
Is limited to the life of the grease, lubrication performance in the use of the process is gradually reduced, wear is gradually increasing, location and so each interval of time must be added to replace it.
Grease replenishment cycle and the structure of the bearings, speed, temperature and environment, should be determined for the enterprise-specific conditions. Grease replacement should pay attention to the different grades of grease can not be mixed, containing different types of thickeners lipid mixing, will destroy the structure and consistency of lubrication, if grade differences of grease must be replaced, bearing the original the grease is completely removed, and added into the new g rease.spherical roller bearing