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误差对NTN轴承寿命的影响

来源:SKF轴承 时间:2021-05-26

首先,轴承尺寸的限制。

通常,可以安装NTN进口轴承的空间是有限的。在大多数情况下,轴直径(或轴承内径)基于机械设计或其他设计约束。因此,根据轴承的内径确定轴承类型和尺寸的选择。因此,标准轴承的主要尺寸表根据国际标准内径尺寸汇编。

有许多尺寸的标准轴承。最好在机械设备的设计中使用标准轴承。(这是轴承是否易于购买的题名。一些轴承目录确实有模型,但一些非标准轴承在中国大陆没有现场,有时期货将很长,所以时间成本和时间应在选择轴承时考虑以后更换的成本)轴承上的负载,施加在轴承上的负荷,其性质,尺寸和方向是可变的。通常,级别的基本负载显示在尺寸表上。但轴向载荷和径向载荷等也是选择合适轴承的重要因素。当球和滚针轴承的尺寸相同时,滚针轴承通常具有更高的负载能力并且可以承受更大的振动和冲击载荷。

二,轴承速度。

允许速度根据NTN进口轴承型,尺寸,精度,笼式,负载,润滑方法和冷却方法等因素来确定。轴承表列出了油润滑和油脂润滑下标准精密轴承的允许速度。通常,深沟滚珠轴承,自对准滚珠轴承和圆柱滚子轴承适用于高速操作。

第三,轴承公差。

轴承尺寸精度和旋转精度基于ISO和JIS标准。对于需要高精度和高速操作的机器,建议使用轴承,精度为5或更高。深沟滚珠轴承,径向推力滚珠轴承或圆柱滚子轴承适用于具有高操作精度的机械。刚性,当压缩轴承的滚动元件和滚道的接触表面时,它将产生弹性变形。有些机器需要最大限度地减少弹性变形。滚子轴承比滚珠轴承产生较小的弹性变形。

 There may be many factors that affect the service life of NTN imported bearings, which can be further explained from the use factors and internal factors.

  Using factors mainly refer to whether the installation, adjustment, use and maintenance, maintenance and repair meet the technical requirements. According to the technical requirements of bearing installation, use, maintenance, and maintenance, monitor and inspect the load, speed, working temperature, vibration, noise and lubrication conditions of the bearing in operation. If abnormalities are found, immediately find the cause, make adjustments, and make Back to normal. Installation conditions are one of the most important factors in use. Bearings often change due to improper installation, resulting in changes in the stress state between the various parts of the entire set of bearings. NTN imported bearings run under abnormal conditions and end their service life early.

NTN.
EC6205ZZC3 / 2A在线联系我们了解狗威网站有关它的更多详细信息。

一般而言,轴承允许误差角的能力受到限制。没有过度应力对轴承,内圈和外圈之间的允许角度误差取决于:

   1. The radial clearance of the bearing during operation.

   2. The size of the bearing.

   3. Internal design.

   4. The force and moment acting on the bearing.

   At present, due to the complicated relationship between these factors, it is impossible to give a clear applicable value. However, any large angle error will increase the noise and shorten the working life of NTN imported bearings.

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