INA rolling bearing installation basic conditions and key points of daily maintenance

If INA bearings with iron filings, burr, dust and other foreign matter to enter, will make the rolling bearing noise and vibration during operation, and even damage raceway and rolling body. So, before the installation of bearings, you must ensure that the installation surface and the environment clean. Lubrication of INA bearings work and life have very important influence, this to you a brief introduction to the general principles of the grease choice. Grease made out of base oil, thickener and additive, different types and different type of same kind grease properties vary widely, allowing the rotation of the limit, when the choice is important to note. The performance of the grease is mainly composed of base oil, the basis of generally low viscosity oil is suitable for low temperature, high speed, high viscosity is suitable for high temperature, high load. Thickener and relationship with lubrication performance, thickening agent, water resistance to the water resistance of the grease. In principle, different brand of grease can't mix, and even the same thickening agent of grease, will also bring bad influence each other on the basis of different additives. 1) Rolling bearing installation space can accommodate in bearing installation space type bearing due to the design of shafting pay attention to the rigidity and strength of shaft, so generally, first determine the diameter of axle, namely the INA bearing inside diameter. But rolling bearing series of a variety of sizes and types, should choose the most suitable type of bearing. 2) The size, direction and nature of load bearing load [ Bearing load capacity with basic rated load, according to the values shown in table bearing size] Rolling bearing load abound change, such as the size of the load, if only the radial load, axial load is a one-way or two-way, the degree of vibration or shock, and so on. After considering these factors, and then to select the most appropriate type of bearing. 3) Speed can adapt to mechanical bearing type [ To benchmark the threshold of the bearing rotating speed in limiting speed, its value is shown in table bearing size] INA bearing limit rotational speed is not only to take on bearing type is limited to the bearing size, cage type, precision grade, load condition and lubrication method, etc. , therefore, when the choice must consider these factors. 4) Has the required rotation accuracy of rotary precision bearing type [ The dimensional accuracy and rotation accuracy of bearing is not the GB by bearing type standardization] Machine tool spindle, gas turbine, and control machine, high rotating accuracy, high speed and low friction, at this time should be used more than 5 level precision of the rolling bearing. 5) Rigid needed to meet the mechanical shafting rigid bearing type [ Bearing the load, the part of the rolling element and raceway contact will produce elastic deformation. 'High rigidity' refers to the deformation of the elastic deformation smaller] Reduction device at the end of the spindle and auto parts, such as to raise the axial rigidity of at the same time, also must improve bearing rigidity. Rolling bearing the load deformation than ball bearings. (on INA bearing preload Negative clearance) Can improve the rigidity. The method is suitable for angular contact ball bearings and tapered roller bearings. 6) Inner ring and outer ring of the tilted relative analysis causes the bearing inner ring and outer ring tilted relative factors ( Such as load caused by the deflection of shaft, shaft, and the precision of the shell bad or installation error) And choose to adapt to the conditions of use of INA bearing type. If the inner ring and outer ring is too big, the relative tilt internal load bearing will cause damage. So should choose the types of bearing can withstand the tilt. 7) Install and remove the periodic inspection frequency installation and the installation method frequently installation, use of inner ring and outer ring separable cylindrical roller bearings, needle roller bearings and tapered roller bearing is more convenient. Conical bore self-aligning ball bearing and taper hole spherical roller bearings by using fasteners or withdrawal sets can be convenient for installation. Rolling bearing surface coated with anti-rust oil, you must use clean petrol or kerosene cleaning carefully, then coated with clean, high quality or high speed high temperature lubricating grease before installation. Cleanliness of INA bearing life and the influence of vibration noise is very big. But we especially want to remind you is: fully enclosed bearing not clean fuel.