NTN thrust ball bearing grease six factors - bearing knowledge should pay attention to choose

The stand or fall of NTN thrust ball bearing grease selection for the stable operation of the equipment has a close relationship with, in order to better play to the best condition of NTN thrust ball bearing, several important factors: the following is a selection of grease mechanical type; NTN thrust ball bearing type and size; Working temperature; Working load; Speed range; Work, such as vibration and the direction of the main shaft is horizontal or vertical. Cooling condition; The sealing effect; Peripheral environment. 1, rust resistance, use within the NTN thrust ball bearing grease must have antirust effect, rust inhibitor is best can not dissolve in water. Grease should have good adhesion, and can form a layer of oil film on the surface of steel. 2, mechanical stability grease in machining will become soft, cause leakage. During normal operation, oil will by NTN thrust ball bearing seat to NTN thrust ball bearings. If the mechanical stability of the oil is insufficient, operation process, the structure of the soap grease causes mechanical disruption of oil was damage, and loss of lubrication. 3, the protection of oil seal oil seal is necessary NTN thrust ball bearing and lubricant from foreign pollution barrier, NTN thrust ball bearing in the process of operation, regardless of debris or moisture can penetrate NTN thrust ball bearings, in case of causing damage to it. The correct installation and maintenance is play NTN thrust ball bearing the longest service life of the most important factors. At the same time, must pay attention to the purity of the NTN thrust ball bearings, thrust ball bearings NTN choice of correctness and choose the appropriate installation and maintenance tools. In addition, NTN thrust ball bearing must prevent polluted by contaminants and moisture, and ensure that the right be installed and lubrication. Therefore, NTN thrust ball bearing with column design, the status of the oil seal, type of lubricants and lubrication cycle, and special maintenance all the same and important role. 4, mix oil never mix the fat off from the incompatible, if two incompatible oil mixture, usually will soften its consistency, finally may be caused by loss of grease is easy to NTN thrust ball bearing damage. If you don't know NTN thrust ball bearings which are using the original grease, you must first thoroughly remove NTN thrust ball bearings inside and outside the old grease, can add new grease. According to the classification of 5, grease main distinguish between temperature and working conditions: grease can be classified according to their allowable working temperature, lubrication grease consistency and ability is affected by temperature, operating under a certain temperature NTN thrust ball bearing must choose under the same temperature has the correct consistency and good lubrication effect of oils and fats. Oil is made of different working temperature range, can be roughly divided into low, medium temperature and high temperature with grease. At the same time, there is a certain type of oils and fats known as resistance to squeeze or extrusion and add molybdenum disulfide, at the same time, among them with additives to enhance the strength of the lubricating oil film. 6, select grease if the wrong choice grease all the important factors that prevent measures of NTN thrust ball bearing is useless, choose a grease, its oil viscosity in working temperature is it is important to be able to provide adequate lubrication effect, viscosity is mainly affected by temperature, it with the temperature rising and falling, is that it increased when the temperature decreases. Therefore, you must know when working temperature of the oil viscosity. Machinery manufacturers are usually specified use some grease, however most of the standard grease applicable range is very wide.