Bearing lubrication technical data

1) Effect of lubrication of the bearing lubrication on the fatigue life of rolling bearing, friction and wear, have important influences, such as temperature, vibration, no normal lubrication, bearing cannot work. Analyze the failure reasons of bearing show that about 40% of the bearing damage is related to bad lubrication. Therefore, good lubrication of the imported bearings distributors bearings is an effective measure to reduce the bearing friction and wear. In addition, the bearing lubrication and cooling, sealing, rust and moderate impact of a number of roles, the effect of bearing lubrication can be briefly stated below: a. The contact between two rolling or sliding surface formed between a layer of oil film separates two surface, reduce the friction and wear of contact surface. b。 Using oil lubrication, especially the circulating oil lubrication, oil mist lubrication and oil lubrication, the bearing lubricating oil take most of the internal friction heat, effective heat dissipation effect. c。 Using grease lubrication, can prevent external dust and other foreign body into the bearings, sealing effect. d。 Lubricant function to prevent corrosion of metal. e. Extend the fatigue life of bearing. 2) Grease lubrication grease is composed of base oil, thickener and additive of lubricants. When the choice, should choose is very suitable for bearing conditions of the use of grease, because the trademark is different, also there will be a very big difference on performance, so when the choice, must pay attention to. Import bearings distributors bearings commonly used grease has calcium base grease, grease sodium, sodium calcium base grease, lithium base grease, aluminium base grease and molybdenum disulfide grease, etc. Number of filling grease in the bearing to 1/2 - full of bearing internal space A third as appropriate. When high speed should be reduced to one third. Too much grease will lead to higher temperature rise. 3) Oil lubrication under the condition of high speed, high temperature, lubrication has not timely lubrication can be used. Through the circulation of lubricating oil, can take away a lot of calories. The comparison of grease lubrication and oil lubrication, bearing lubrication method is roughly divided into two kinds of grease lubrication and oil lubrication. In order to give full play to the function of the bearing, it is important to use according to the way and purpose, the lubrication method. Grease lubrication, grease is composed of base oil, thickener and additive of lubricants. When the choice, should choose is very suitable for bearing conditions of use of embellish grease, because the trademark is different, also there will be a very big difference on performance, so when the choice, must pay attention to. Bearing the commonly used sodium calcium base grease, grease, grease sodium calcium base grease, lithium grease, aluminium base grease and molybdenum disulfide grease, etc. Number of filling grease in the bearing to 1/2 - full of bearing internal space A third as appropriate. When high speed should be reduced to one third. Too much grease will lead to higher temperature rise. Grease choice: when selecting a grease according to the working temperature, the main indicators should be drop point, oxidation stability and low temperature performance, drop point generally can be used to evaluate the high temperature performance, bearing the actual working temperature should be lower than 10 - drop point 20℃。 The use of synthetic grease temperature should be lower than 20 - drop point 30℃。 4) Viscosity is an important characteristic of lubricating oil viscosity, viscosity directly affect the liquidity of lubricating oil and the size of the friction surface is formed between the oil film thickness, the bearing working temperature of lubricating oil viscosity is usually 12 - 18cst。 Speed the Gao Yingxuan lower viscosity, the more load weight should choose high viscosity. Commonly used lubricating oil machine, high-speed machine oil, turbine oil, compressor oil, transformer oil, cylinder oil, etc. 6年级/ ABEC3如下的WTtolerance d ( mm) △dmp Vdp ( Diameter series) Vdmp Kia delta Bs Vbs 9 0, 1, 2 and 4 more than over to the to the Max Max min min maximum Max Max maximum Max Max Max min min Max. 2. 10 0 0 7 and 9 7 5 5 0 to 5 15 10 18 0-120 7 and 9 7 5 5 0 to 7 20 18 30 0-120 10 8 August 6 6 0 to 8 120 20