Choose a bearing arrangement of fixed method

Usually, select the bearing arrangement of fixed methods: only is supported by two bearings when considering bearing installation. The following items: (must survey 1) Shaft expansion and contraction of the temperature change. （ 2) Bearing installation and disassembly is convenient. （ 3) The inner ring and outer ring of misalignment caused by shaft deflection or installation error. （ 4) The stiffness of the whole system, including bearing and preloading method. （ 5) Able to maintain its proper load position and transfer. Fixed end and free end bearing, bearing on the shaft, only one can be used for fixed axis fixed end bearing. For this kind of fixed end bearing, can carry two types must choose the radial and axial load. Choose the bearing arrangement fixed method: 1. Outside the fixed end bearing must be 'end bearing, bearing radial load only in order to reduce thermal elongation and contraction of the bearing. 2. If the lack of measures to reduce the axial thermal elongation shrinkage, abnormal axial load applied to the bearing, this can lead to premature failure. 3. For free end SKF bearing, cylindrical roller bearing or needle roller bearing is separable inner diameter can be freely axial moving ring ( NU, N type, etc. ) 。 4. Recommended when using these types, installation and removal is easier. When inseparable types used as the free end bearing, usually between outer ring and outer ring with loose shell, allow the shaft to mobile operation shaft with bearings. Sometimes, this extension by loose cooperate to reduce the inner ring and shaft. 5. When the distance between the bearing short axial elongation and shrinkage is negligible two angular contact ball bearing or the use of tapered roller bearing. Axial clearance ( Possible axial movement) Nuts or washers, is used to adjust the difference between the free end and fixed end, bearing and some possible bearing installed various bearing type. Some typical bearing installation method considering the entire preloaded and rigidity of components, the axial elongation and contraction, installation error, etc.