Reduce INA rolling bearing noise corresponding selection method

To use vibration absorption or isolation devices to reduce noise or noise isolation bearing, INA bearing can get good effect, but this often pay a high price in terms of economy, sometimes make institutional change, cooling condition, or easy to rust, use of comprehensive consideration, only after other steps taken, still cannot use can reach the indexes of the low noise after this law. Rolling bearing installation space can accommodate in INA bearing installation space bearing model due to the design of shafting pay attention to the rigidity and strength of shaft, so generally, first determine the diameter of axle, bearing inside diameter. But rolling bearing series of a variety of sizes and types, should choose the most suitable type of bearing. The size, direction and nature of load bearing load bearing capacity with shiva said the rated load, its value is shown in table bearing size 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. In general, the same inner diameter of the rolling bearing radial load capacity increasing in the following order: deep groove ball bearings, Angular contact ball bearing, Cylindrical roller bearing, Tapered roller bearings, Spherical roller bearings. Speed can adapt to mechanical bearing type (to benchmark the threshold of the bearing rotating speed with speed limit, said 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. Most of the following bearings used in high speed rotation: deep groove ball bearings, angular contact ball bearings, cylindrical roller bearings. Rotating accuracy, has the required rotation accuracy of bearing type (size precision of the bearing and rotating precision f by 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 bearing. Generally use the following bearings: deep groove ball bearing, contact ball bearing, cylindrical roller bearing. Just performance to meet required for mechanical shafting rigid bearing type (bearing load, part of the rolling element and raceway contact will produce elastic deformation. 'High rigidity' refers to the deformation of the elastic deformation smaller) at the end of the spindle and auto reduction in areas such as the dish, at the same time of increase axial rigidity, must also improve bearing rigidity. Roller bearing the load deformation than ball bearings. (on bearing preload Negative clearance) Can improve the rigidity. The method is suitable for angular contact ball bearings and tapered roller bearings. To reduce the noise of the pump system, the original used in motor speed to 1430 r/min flow to 10 l/min pump, to the speed of 710 r/min and match with more specifications of the pump and motor after you get the same flow rate, oil pump, oil pump itself bearing oil pump and motor bearing noise is significantly reduced, but take up space, a complete set of institutions cost also increased. Rolling bearing noise is not very sensitive to load, but the speed is very sensitive, in conditions allow, reduce speed and increase torque method to achieve the same job, but it reduces the noise. Add some chemical additives are added into the INA bearing lubricant, can reduce the bearing noise, such as tianjin a factory to produce a low-noise grease containing noise reduction additive, on the basis of bearing noise from the original can be reduced. 3. 2 db, suitable for use in the micro or small bearings.