The Swedish SKF bearing lubrication knowledge skills - bearing

Rust resistance used in bearing grease must have antirust effect, rust inhibitor is best can not dissolve in water. Grease should have good adhesion force can form a layer of oil film in the surface of steel, even if grease is full of water can also be maintained. Mechanical stability grease in mechanical processing will become soft, lead to leakage. When there is a application example of vibration, oil bearing will jilt to the bearings. If the mechanical stability of the oil is insufficient, grease can constantly thrown outside the bearing, this will make the soap structure make mechanical disintegration and the use of grease are destroyed. Oil seal oil seal is necessary to protect bearings and lubricants in order to prevent the external pollution, regardless of debris or moisture can penetrate bearings, in case of damage. Have a bearing on the correct installation and maintenance is an important factor of the longest service life. Must pay attention to the bearing at the same time, the clean degree of the correctness of the bearing selection and choose the appropriate installation and maintenance tools. Bearings must prevent polluted by contaminants and moisture, must correct installation and lubrication. The design of the bearing arrangement, the condition of the oil seal, type of lubricants and lubrication cycle, and special maintenance plays the same important role. Mixed oil never mix incompatible grease, if two incompatible oil mixing, usually consistency will become soft, the last may be caused by loss of grease is easy to damage. If you don't know what kind of grease, bearing used first to remove the bearing internal and external old grease, can add grease filling. Oil classification according to the temperature and the working conditions to distinguish: grease can be classified according to their allowable working temperature, lubrication grease consistency and ability is affected by temperature, operating under a certain temperature bearing must choose under the same temperature has the correct consistency and good lubrication effect of oils and fats. Oil is different to make working temperature range, can be divided into low temperature ( LT) , medium temperature ( 太) And high temperature ( HT) Oil and grease. At the same time there is a certain type of oils and fats, called EP ( Extrusion proof. ) Or EM ( Resistance to extrusion and adding mos2) , with additives to enhance the strength of the lubricating oil film. Select grease if the wrong choice grease is all in vain bearing damage prevention measures, choose a kind of grease the base oil viscosity in the working temperature of it when it is important to be able to provide adequate lubrication effect, viscosity is mainly affected by temperature, it along with the temperature rising and falling, it increased when the temperature drops. So you have to know when the working temperature of base oil viscosity, machinery makers usually specified use some oil, most of the standard grease can be used with a wide range. Here are several important factors: choose the grease type low mechanical performance, such as vibration and the direction of the main shaft is horizontal or vertical bearing type and size of low working temperature low workload low cooling condition low sealing effect low speed range low peripheral environment if machinery and equipment to play to the best condition of bearing must be properly the right job, and avoid the extreme high temperature, damp and pollution of the environment. Proper lubrication and protection plan, and have a bearing on bearing condition monitoring work is the focus of the highest life expectancy. When bearing damage may result in unexpected equipment downtime. Even one hour of downtime due to bearing failure may cause huge lost production in advance. To ensure healthy operation, in addition to relying on high quality bearings, but also pay attention to the operating environment, correct installation and regular maintenance.