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Analysis of similarities and differences between SKF bearing vibration type and ordinary type
by：Fortuna
2021-05-09
1. Let me talk about the SKF bearing vibration type. The inner and outer rings and rolling elements of the SKF bearing vibration type are made of vacuum degassed bearing steel, which has good fatigue resistance. Moreover, the cage is made of aluminum, iron, manganese and bronze material, which has high strength, good elasticity and better wear resistance.
Second, let’s take a look at the common type of SKF bearing. The inner and outer rings and rolling elements of the common type of SKF bearing are made of ordinary bearing steel. Also, the cage is made of zinc brass, which has low strength and poor elasticity.
So, how to choose whether to use SKF bearing vibration type or SKF bearing ordinary type? , The following three points are for reference:
1 Fixed load, the characteristic of fixed load is that the composite radial load vector is relatively static with the ferrule.
2 Rotating load, the characteristic of rotating load is that the resultant radial load vector rotates relative to the ferrule.
3 Swing load and variable load. Swing load refers to the combined load that the rotating load is much smaller than the fixed load. Swing load means that the load on some ferrules may sometimes be a rotating load, sometimes a fixed load, and sometimes a swing load.
In general, the ring of the vibrating SKF bearing needs a certain transition fit or interference fit with the shaft or seat hole. The interference size is based on the SKF bearing working under load, the SKF bearing ring is on the shaft The principle is that no creeping phenomenon occurs on the mating surface of the upper or seat hole.
Second, let’s take a look at the common type of SKF bearing. The inner and outer rings and rolling elements of the common type of SKF bearing are made of ordinary bearing steel. Also, the cage is made of zinc brass, which has low strength and poor elasticity.
So, how to choose whether to use SKF bearing vibration type or SKF bearing ordinary type? , The following three points are for reference:
1 Fixed load, the characteristic of fixed load is that the composite radial load vector is relatively static with the ferrule.
2 Rotating load, the characteristic of rotating load is that the resultant radial load vector rotates relative to the ferrule.
3 Swing load and variable load. Swing load refers to the combined load that the rotating load is much smaller than the fixed load. Swing load means that the load on some ferrules may sometimes be a rotating load, sometimes a fixed load, and sometimes a swing load.
In general, the ring of the vibrating SKF bearing needs a certain transition fit or interference fit with the shaft or seat hole. The interference size is based on the SKF bearing working under load, the SKF bearing ring is on the shaft The principle is that no creeping phenomenon occurs on the mating surface of the upper or seat hole.
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