How to improve the high temperature bearing bearing stiffness

1) how to improve the high temperature bearing bearing stiffness Match the request of the appearance of high temperature bearing shaft and bearing assembly parts on a hole, the lower the surface roughness is, the better shape and position precision, would get the bearing rigidity is also higher. To reinforce disposal appearance of the appearance, rigid good progress. Application of roughness is low high hardness stopper, at a certain interference in a smooth state repeatedly gentle pressure into and out of a hole, and conducive to progress support rigidity, snap ring for shaft neck if necessary to stop similar treatment. ( 2) Application of high temperature bearing preload method advances bearing rigidity of ball bearing and taper roller bearings can take axial preload method, radial on short cylindrical roller bearing can be preloaded method, shaft bearing rigidity can significantly improvement, at that moment, or eliminate the bearing clearance, or had little negative clearance. But the speed is not too high, under the condition of temperature rise modestly, should also be transferred to the best little negative clearance status. When applying preload, appropriate measurement of the deformation conditions from time to time, pay attention to in the low stage of the deformation, deformation is nonlinear with the increase of the pre-tightening load; And in the stage of high value, deformation are linear with the increase of the load. Once the linear relation with the deformation of a load, increase pre-tightening load immediately suspend, now a constant stiffness can be obtained. Then, bearing the axial and radial rigidity of the rigid relationship between the fixed, and not dependent on the applied load. The deformation measurement, can be used for example to dial gauge head for in the proper position of the bearing face or shaft, examine its reading with pre-tightening load change. Preloaded method has its negative aspects, such as make bearing friction torque increases, the temperature and shorten the life progress, so comprehensive thinking, weigh the gain and loss, choose appropriate amount of preloaded. ( 3) Bearing the configuration of the bearing configuration has a very big impact on bearing stiffness, ordinary, type of angular contact ball bearings and roller bearings, in pairs using the appropriate outer end face relatively ( Is the pressure line of cone pointed out) Configuration, the configuration bearing resistance to overturn torque can be big, the temperature changes when the higher amount of preloaded less attack changes. ( 4) Using multiple bearing under the condition of axial location allowed, each pivot using two or more than two bearing as radial bearing, bearing rigidity can progress. The previous: common high temperature bearing failure reason analysis and handling measures next article: six reasons can lead to high temperature overheating of the bearings