如何提升镇江INA轴承预紧与表面的相配要求

当施加镇江INA轴承预紧力时，建议连续测量变形。需要指出的是，这种变形是非线性的，在低变形阶段增加高变形阶段的载荷，在高变形阶段增加线性预拉载荷。主变形与荷载之间呈线性关系。预紧力的增加立即停止，可以获得恒定的刚度。此后，轴向和径向轴承的刚度之间存在固定的关系，该关系不依赖于外部负载。

When applying Zhenjiang INA bearing preload, it is recommended to continuously measure the deformation. It should be pointed out that this kind of deformation is nonlinear, increasing the load of high deformation stage at low deformation stage and linear pre-tension load at high deformation stage. There is a linear relati***hip between the main deformation and the load. The increase of pre tightening force stops immediately, and a c***tant stiffness can be obtained. Thereafter, there is a fixed relati***hip between axial and radial bearing stiffness, which does not depend on external load.

1。配备进口轴承，轴承结构对轴承刚度有很大影响。一般来说，向心推力球轴承和滚子轴承，外圈具有较大的端面，对于轴承具有抗倾覆扭矩的能力。当温度变化时，预载调整也不会有太大的变化。

1. Equipped with imported bearings, bearing structure has great influence on bearing stiffness. Generally speaking, centripetal thrust ball bearings and roller bearings, the outer ring has a large end face, for the bearing has the ability to resist overturning torque. When the temperature changes, the preload adjustment will not change much.

2。在允许的轴向位置条件下，通过多镇江INA轴承支承和每个支点处两个或更多个径向轴承支承，可以提高支承刚度。近年来，轴向预紧力和多组向心推力轴承在机床主轴装配中获得广泛应用。

2. Supporting stiffness can be improved by multiple Zhenjiang INA bearings and two or more radial bearings at each fulcrum in the allowable axial position. In recent years, axial preload and multi group centripetal thrust bearings h***e been widely applied in machine tool spindle assembly.

3。为了满足瑞典镇江INA轴承配合面的要求，更好的轴和座孔的形状和轴承安装位置、位置精度、较低的表面粗糙度、较高的支承刚度。表面硬化有利于提高硬度。在润滑条件下，将硬度极低的高硬度塞子轻轻地多次压入座孔内、压出座孔，并且存在一定的干扰，也有利于提高支承刚度。如果需要，它类似于使用夹紧环来处理轴颈。

3. In order to meet the requirements of Swedish Zhenjiang INA bearing mating surface, better shaft and seat hole shape and bearing installation position, position accuracy, lower surface roughness, higher support stiffness. Surface hardening is beneficial to improving hardness. Under lubrication condition, the high hardness plug with extremely low hardness is gently pressed into and out of the seat hole for many times, and there is a certain interference, which is also conducive to improving the support stiffness. If necessary, it is similar to using a clamping ring to handle the journal.

4。轴承预压法可用于提高轴承刚度。镇江INA轴承轴向预紧方法可用于球轴承或进口轴承，而径向预紧方法可用于短圆柱滚子轴承，可显著提高轴的刚度。此时，拆下轴承间隙或获得一个小的负间隙。然而，当速度不太高且温度不太高时，尽量调整负间隙较小。

4. Bearing preloading method can be used to improve bearing stiffness. Zhenjiang INA bearing axial pre-tightening method can be used for ball bearings or imported bearings, while radial pre-tightening method can be used for short cylindrical roller bearings, can significantly improve the shaft stiffness. At this time, the bearing clearance is removed or a ***all negative gap is obtained. However, when the speed is not too high and the temperature is not too high, try to adjust the negative gap ***aller.

这些变形可以通过例如将探针放置在入口镇江INA轴承的表面或具有预载荷的轴的适当部分来观察。预紧方法存在增加轴承摩擦扭矩、提高温升、缩短使用寿命等不足，应综合考虑，权衡得失，选择合适的预紧方法。

These deformati*** can be observed by, for example, placing a probe on the surface of an INA bearing at the entrance to Zhenjiang or by an appropriate portion of a pre-loaded shaft. Pre-tightening method has the shortcomings of increasing bearing friction torque, increasing temperature rise, shortening service life, etc. It should be c***idered comprehensively, weigh the gain and loss, and choose the appropriate pre-tightening method.

文章来自：镇江SKF轴承 www.wh-skf.com

The article is from: Zhenjiang SKF bearing www.wh-skf.com

文章来自：镇江INA轴承 www.ina-china.cn

The article is from: Zhenjiang INA bearing www.ina-china.cn

文章来自：镇江NSK轴承 www.klbbearings.com

The article is from: Zhenjiang NSK bearing www.klbbearings.com

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