很多人在安装NSK轴承中使用不当的安装方法，导致轴承的损坏。那么如何正确的安装NSK轴承呢？希望大家更全面的了解轴承的安装与拆卸：
Many people use improper installation methods in the installation of NSK bearings, resulting in bearing damage. Then how to install NSK bearings correctly? I hope you will have a better understanding of the installation and disassembly of bearings.
安装时，可以根据其类型和尺寸，选择机械、加热或液压等方法进行。但在任何情况下，都不可以直接敲击轴承圈、保持架、滚动体或密封件。安装时对轴承施加的作用力，绝不可通过滚动体从一个轴承圈传递到另一个轴承圈，否则可能会对滚道造成损坏。
During installation, mechanical, heating or hydraulic methods can be selected according to its type and size. However, under any circumstances, the bearing rings, cage, rollers or seals can not be struck directly. The force exerted on the bearing during installation must not be transferred from one bearing ring to another through the rolling element, otherwise the raceway may be damaged.
对于间隙配合的轴承圈，建议在配合面涂一层薄薄的防蠕动腐蚀剂，以防配合面之间产生摩擦腐蚀。
For the bearing rings with clearance fit, it is suggested to coat a thin layer of anti-creep corrosion agent on the mating surface to prevent friction corrosion between mating surfaces.
正确的安装，对于NSK轴承的使用来说是非常重要的。希望大家能够在以后的使用中使用正确的安装方法。
The correct installation is very important for the use of NSK bearings. I hope you can use the correct installation method in future use.
390000系列外球面轴承是通过偏心套将轴承内圈与轴固定，偏心套上的内六角螺钉起紧固作用。在维修中，不少机手不会拆装这种NSK轴承，故有必要介绍一下拆装390000系列外球面轴承的技术要点和注意事项：
Series 390000 external spherical bearings fix the inner ring of the bearing to the shaft through an eccentric sleeve, and the inner hexagonal screw on the eccentric sleeve acts as a fastener. In the course of maintenance, many operators will not disassemble and assemble this kind of NSK bearing, so it is necessary to introduce the technical points and precautions for disassembling and assembling 390000 series external spherical bearings.
一、拆卸
One, dismantling
1．先用内六角扳手松开轴承偏心套上的锁紧螺钉，然后用小铁棒插入顶盖偏心套上的沉孔，逆着轴的旋转方向打松偏心套。
1. First loosen the locking screw on the eccentric sleeve of the bearing with an inner hexagonal wrench, then insert a small iron rod into the sunken hole on the eccentric sleeve of the top cover, and loosen the eccentric sleeve against the rotation direction of the shaft.
2．旋松固定轴承座的螺栓。将轴承连同轴承座一起从轴上卸下。注意在拆轴一端的轴承座之前．应将轴另一端的轴承座螺栓松开，以免两端轴承相互别劲而损坏。
2. loosening bolts for fixing bearing blocks. Remove the bearing from the shaft together with the bearing block. Note that before removing the bearing seat at one end of the shaft, the bearing seat bolts at the other end of the shaft should be loosened so as to avoid damage to the bearing at both ends.
二、安装
Two. Installation
1．往轴上安装进口轴承前，必须先拔下轴承外套的固定销，同时将轴颈表面打磨光滑干净，并在轴颈处涂油防锈兼润滑(允许轴承在轴上有稍微转动)。
1. Before installing the imported bearing on the shaft, the fixed pin of the bearing coat must be pulled out, and the surface of the journal must be polished smoothly and cleanly, and the journal should be oiled to prevent rust and lubricate (allowing the bearing to rotate slightly on the shaft).
2．在轴承座与轴承配合面涂润滑油，把轴承装入轴承座内。然后将装配好的轴承与NSK轴承座一起套在轴上．推至所需位置处进行安装。
2. lubricating oil is placed on the mating surface of the bearing block and the bearing, and the bearing is loaded into the bearing seat. Then the assembled bearings are sleeved on the shaft with the NSK bearing seat and pushed to the desired location for installation.
3．固定轴承座的螺栓先不要拧紧，要让轴承外套在轴承座内能转动。同样装好同一根轴上的另一端轴承和座，将轴转动几圈，让轴承本身自动找正位置后。再将轴承座螺栓紧固好。
3. the bolt of the fixed bearing seat should not be tightened first, so that the bearing sleeve can be rotated in the bearing seat. Similarly, the bearing and seat on the other end of the same shaft are installed, and the shaft is rotated several times, so that the bearing itself can find the correct position automatically. Then fasten the bearing seat bolts.
4．装偏心套。先将偏心套套在轴承内套的偏心台阶上，并用手顺轴的旋转方向拧紧．然后再将小铁棍插入或顶住偏心套上的沉孔．用手锤顺轴的旋转方向敲击小铁棍．使偏心套安装牢固，后锁紧偏心套上的内六角螺钉。
4. install eccentric sleeve. Firstly, the eccentric sleeve is put on the eccentric step of the bearing inner sleeve, and is tightened with the rotation direction of the hand in the axial direction. Then, the small iron rod is inserted into or against the hole of the eccentric sleeve. The small iron rod is knocked with the rotary direction of the hand hammer in the axial direction. The eccentric sleeve is fixed firmly, and the inner hexagonal screw on the eccentric sleeve is finally locked.