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选择不当的主要原因是使用没有保持架的圆柱滚子轴承代替推力轴承或轴承支承结构。当轴向载荷较大时，能够承受较大直径和组合的轴向载荷。经过3000小时的累计工作，进口轴承的滚动表面没有疲劳损伤，只有划痕。轴承在径向载荷下的疲劳寿命很长。

The main reason for improper selection is the use of cylindrical roller bearings without cages instead of thrust bearings or bearing support structures. When the axial load is large, it can withstand the axial load of larger diameter and combination. After 3000 hours of cumulative work, the rolling su-ce of imported bearings has no fatigue damage, only scratches. The fatigue life of bearings under radial load is very long.

结果表明，当轴承断裂时，材料组织细小，不产生粗大的晶粒。断裂为银灰色，属于脆性断裂。

The results show that when the bearing is broken, the structure of the material is fine and no coarse grains are produced. The fracture is silver gray and belongs to brittle fracture.

通常，泰州SKF轴承可以安装的空间是有限的。在大多数情况下，轴直径（或轴承内径）是基于机械设计或其*他设计限*制。因此，轴承类型和尺寸的选择取决于轴承的内径。为此，根据国际标准内径尺寸编制了标准轴承的主要尺寸表。

Usually, Taizhou SKF bearings can be instalLED in limited sPACe. In most cases, the shaft diameter (or bearing inner diameter) is based on mechanical design or other design limitations. Therefore, the choice of bearing type and size depends on the inner diameter of the bearing. For this reason, the main dimension tables of standard bearings are compiled according to the international standard inner diameter dimensions.

根据轴承的分类，分析了进口泰州SKF轴承的可能产业。关键问题是根据公司股票的实际情况确定重*点行业。

According to the classification of bearings, the possible industries of SKF bearings imported from Taizhou were analyzed. The key problem is to determine the key industries according to the actual situation of the company's stock.

轴承安装必*须在干燥、清洁的环境中进行。安装前，应仔细检查车轴壳安装面、肩端面、槽和连接面的质量。

Bearing installation must be carried out in a dry and clean environment. Before installation, the quality of axle housing installation su-ce, shoulder end su-ce, groove and connection su-ce should be carefully checked.

轴承通常用于高速、高精度的设备中，因为它保证了正常速度和高精度，并且降低了维护成本。

Bearings are usually used in high-speed, high-precision equipment, because it guarantees normal speed and high accuracy, and reduces maintenance costs.

通常，轴在径向和轴向由两个泰州SKF轴承支撑。一侧的轴承称为固定端轴承。它同时承受径向和轴向载荷，并作为固定轴和轴承箱之间的相对轴向位移。另一侧称为自*由端，只承受径向载荷，可以沿轴线相对运动。

Usually, the shaft is supported by two Taizhou SKF bearings in both radial and axial directions. 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 box. The other side, known as the self * free end, bears only radial loads and can move relative along the axis.

双向推力球轴承运行中的检测项目及损坏原因

Inspection items and damage reasons of bi-directional thrust ball bearings in operation

当双向推力球泰州SKF轴承损坏后拆卸检查时，可根据轴承的损坏情况判断故障及损坏原因。

When the two-way thrust ball Taizhou SKF 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.

烧坏的轴承在滚道和滚子上回火。烧*伤通常由润滑不足、润滑剂质量差或劣化以及轴承的紧密装配引起。

Burned bearings are tempered on raceways and rollers. Burns are usually caused by insufficient lubrication, poor or deteriorated lubricant quality, and tight assembly of bearings.

内外圈轴承的滚子表面和滚道承受周期性波动载荷，导致接触应力的周期性变化。当应力循环次数达到一定值时，疲劳剥落将发生在滚动体的工作表面或内外滚道上。如果轴承负荷过大，疲劳就会增加。此外，轴承安装不当和轴弯曲也会导致滚道剥落。轴承滚道的疲劳剥落会降低轴的工作精度，引起机构的振动和噪声。

The roller su-ce and raceway of inner and outer ring bearing bear 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 working su-ce of the rolling element or on the inner and outer raceways. If the bearing load is too large, fatigue will increase. In addition, improper bearing installation and shaft bending can also lead to raceway spalling. Fatigue spalling of bearing raceway will reduce the working accuracy of shaft and cause vibration and noise of mechanism.

文章来自：泰州SKF轴承 www.wh-skf.com

Article from: Taizhou SKF Bearing www.wh-skf.com

文章来自：泰州INA轴承 www.ina-china.cn

Article from: Taizhou INA Bearing www.ina-China.cn

文章来自：泰州NSK轴承 www.klbbearings.com

Article from: Taizhou NSK Bearing www.klbbearings.com

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