淮安INA轴承选择不当主要是由于使用了无保持架的圆柱滚子轴承，而不是能够承受大直径和组合轴向载荷（当轴向载荷较大时）的推力轴承或轴承支撑结构。工作3000小时后，进口轴承滚动面无疲劳损伤，轴承仅出现划痕。用径向载荷计算轴承的疲劳寿命很长。
The improper selection of Huaian INA bearings is mainly due to the use of cylindrical roller bearings without cages, rather than thrust bearings or bearing support structures that can withstand large diameter and combined axial loads (when the axial loads are large). After 3000 hours of work, there is no fatigue damage on the rolling surface of the imported bearing, and only scratches appear on the bearing. The fatigue life of bearing calculated by radial load is very long.
据观察，轴承断裂材料***细小，无粗晶。断裂呈银***，易碎。
According to observation, the fracture material of bearing has fine structure and no coarse grain. The fracture is silver gray and fragile.
通常，轴承安装空间有限。在大多数情况下，轴直径（或轴承内径）基于机械设计或其余设计限现制。因此，轴承类型和尺寸的选择取决于轴承的内径。因此，标准轴承的主要尺寸表是根据国际标准内径尺寸编制的。
Usually, bearing installation space is limited. In most cases, the shaft diameter (or bearing inner diameter) is based on mechanical design or other design limitati***. Therefore, the choice of bearing type and size depends on the inner diameter of the bearing. Therefore, the main dimension tables of standard bearings are compiled according to the international standard internal diameter dimensi***.
根据轴承的分类，分析了进口淮安INA轴承可能的行业。关键问题是根据公司***的实际情况来识别关键行业。
According to the classification of bearings, the possible industries of imported Huaian INA bearings are analyzed. The key problem is to identify key industries according to the actual situation of the company's stock.
轴承安装：轴承安装币须在干燥清洁的环境中进行。安装前应仔细检查桥壳的安装面、轴肩端面、凹槽和连接面质量。
Bearing Installation: Bearing Installation Coin shall be carried out in a dry and clean environment. Before installation, the quality of installation surface, shoulder end surface, groove and connection surface of axle housing should be carefully checked.
轴承由于保证了轴承的正常转速和高精度，降低了维护成本，在高速高精度设备中的到了广泛的应用。
Bearing is widely used in high-speed and high-precision equipment because it ensures the normal speed and high accuracy of the bearing and reduces the maintenance cost.
通常，轴由径向和轴向轴承支撑。一侧的轴承称为固定端淮安INA轴承。它同时承受径向和轴向载荷，充当固定轴和轴承箱之间的相对轴向位移。另一侧称为字由端。它只承受径向载荷，能相对地沿轴线移动。
Usually, the shaft is supported by radial and axial bearings. The bearing on one side is called Huaian INA bearing on the fixed end. It bears both radial and axial loads and acts as the relative axial displacement between the fixed shaft and the bearing box. The other side is called the end of the word. It only bears radial load and can move along the axis relatively.
双向推力球轴承运行中的检查项目及损坏原因
Inspection Items and Damage Reas*** of Two-way Thrust Ball Bearing in Operation
双向推力球轴承损坏后解体检查时，可根据轴承损坏情况判断故障及损坏原因。
When the two-way thrust ball bearing is disassembled and inspected after being damaged, the fault and the cause of the damage can be judged according to the damage of the bearing.
1。轴承烧商
1. Bearing burner
烧坏的轴承在其滚道和滚子上有回火的颜色。烧殇通常是由于润滑不足、润滑油不合格或变质以及淮安INA轴承装配过紧造成的。
Burned bearings h***e tempered colors on their raceways and rollers. Burning is usually due to insufficient lubrication, unqualified lubricants or deterioration, and too tight assembly of Huaian INA bearings.
2。滚道表面金属剥落
2. Metal spalling on raceway surface
轴承滚动体和内外环滚道表面承受周期性波动载荷，导致接触应力周期性变化。当应力循环次数达到一定值时，滚动表面或内外滚道会发生疲劳剥落。如果轴承的负荷过大，疲劳会增加。此外，轴承安装不当和轴弯曲也可能导致滚道剥落。淮安INA轴承滚道疲劳剥落会降低轴的运行精度，引起机构振动和噪声。
The surface of bearing rolling element and inner and outer ring raceway bears periodic fluctuating load, which results in periodic change of contact stress. When the number of stress cycles reaches a certain value, fatigue spalling will occur on the rolling surface or the inner and outer raceways. If the load of the bearing is too large, fatigue will increase. In addition, improper bearing installation and shaft bending may also lead to raceway spalling. Fatigue spalling of Huaian INA bearing raceway will reduce the running accuracy of the shaft and cause vibration and noise of the mechani***.
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文章来自：淮安INA轴承 a-
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