通常，轴由径向和轴向两个轴承支承。一侧的轴承称为固定端轴承。它同时承受径向和轴向载荷，作为固定轴与轴承座之间的相对轴向位移。另一边叫做自.由端。它只承受径向载荷，可以相对轴向移动。
Usually, the shaft is supported by radial and axial bearings. Bearings on one side are called fixed end bearings. It bears both radial and axial loads and acts as the relative axial displacement between the fixed shaft and the bearing seat. The other side is called self-end. It only bears radial loads and can move relatively axially.
固定端淮安INA轴承bi须与轴和轴承箱同时固定。zui适合的轴承是能承受复杂载荷的径向轴承，如深沟球轴承、调心滚子轴承、双列或对角接触球轴承或圆锥滚子轴承。径向轴承的组合在简单的径向载荷下，如圆柱滚子轴承内圈和外圈有ribless，深沟球轴承或四点接触球轴承或双向推力轴承，也可以作为固定端轴承使用。此时，Di二轴承提供双向轴向定位，但bi须与轴承箱安装在一定的径向间隔。当自.由端轴承的长度因热膨胀而改变时，轴承内不会发生挤压。轴向位移可能发生在轴承内部，以及轴承环和淮安INA轴承座。
The fixed end of Huaian INA bearing Bi shall be fixed simultaneously with the shaft and bearing box. Zui is suitable for bearings that can withstand complex loads, such as deep groove ball bearings, self-aligning roller bearings, double row or diagonal contact ball bearings or tapered roller bearings. The combination of radial bearings under simple radial loads, such as ribless inner and outer rings of cylindrical roller bearings, deep groove ball bearings or four-point contact ball bearings or bi-directional thrust bearings, can also be used as fixed-end bearings. At this time, Di 2 bearings provide bidirectional axial positioning, but Bi must be installed at a certain radial interval with the bearing box. When the length of self-end bearing is changed by thermal expansion, no extrusion will occur in the bearing. Axial displacement may occur inside the bearing, as well as the bearing ring and Huaian INA bearing seat.
“十字定位”是指轴承的配置，每个轴承都位于一个方向和相反的方向。这种组合主要用于短轴。所有径向轴承，包括深沟和角接触球轴承、圆锥滚子轴承和NJ圆柱滚子轴承，都适合承受至少一个方向的轴向载荷。在某些情况下，当使用角接触球轴承或圆锥滚子轴承时，bi须施加预紧力。
"Cross positioning" refers to the configuration of bearings, each bearing is located in one direction and the opposite direction. This combination is mainly used for short axes. All radial bearings, including deep groove and angular contact ball bearings, tapered roller bearings and NJ cylindrical roller bearings, are suitable for bearing at least one direction of axial load. In some cases, when angular contact ball bearings or tapered roller bearings are used, Bi is required to exert preload.
在轴承选型阶段，需要考虑许多因素(如载荷、硬度、工作环境等)。一个好的轴承设计首先会使轴承达到它的zui大寿命。
In the stage of bearing selection, many factors (such as load, hardness, working environment, etc.) need to be considered. A good bearing design will first make the bearing reach its Zui life.
2.正确储存，淮安INA轴承应在安装前按原包装保存。它需要保持在一个干净，潮湿和相对恒定的温度环境。滚动轴承应远离灰尘、水和腐蚀性化学品。振动和振动会对轴承的机械性能造成永.久性的破坏，因此在加工和储存过程中应避免振动。一般来说，轴承应保持水平。一些较重的轴承在长期垂直放置后会因自身重量而变形。此外，润滑(或密封)轴承需要特别小心，因为油脂的密度在长期储存后会发生变化。轴承首.次使用时，会产生一定程度的旋转噪声。因此，这种轴承的保质期应根据先进先出原则进行控制。
2. Proper storage, Huaian INA bearings should be stored in the original packaging before installation. It needs to be kept in a clean, humid and relatively constant temperature environment. Rolling bearings should be kept away from dust, water and corrosive chemicals. Vibration and vibration will cause permanent damage to the mechanical properties of bearings, so vibration should be avoided in the process of processing and storage. Generally speaking, bearings should be kept level. Some heavier bearings will be deformed by their own weight after long-term vertical placement. In addition, lubricated (or sealed) bearings require special care because the density of grease changes after long-term storage. When the bearing head is used for a second time, it will produce a certain degree of rotational noise. Therefore, the shelf life of this kind of bearing should be controlled according to the first-in-first-out principle.
文章来自：淮安SKF轴承 www.wh-skf.com
Article from: Huaian SKF Bearing www.wh-skf.com
文章来自：淮安INA轴承 www.ina-china.cn
Article from: Huaian INA Bearing www.ina-China.cn
文章来自：淮安NSK轴承 www.klbbearings.com
Article from: Huaian NSK Bearing www.klbbearings.com
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