What are the causes of the failure of the cross-shaft cardan shaft?

Experienced people know that the cross-shaft cardan is a connecting device, before the corresponding use, we need to have a certain understanding of it, so today is mainly to introduce the causes of the failure of the cross-shaft cardan.



What are the causes of the failure of the cross-shaft cardan shaft?

1. Oblique embossing
When the total circumferential clearance of the bearings in the cross-shaft universal shaft is relatively large, the needle roller is prone to skew, which makes a certain Angle of impression between the journal of the cross-shaft and the axis. If the impression continues further, the friction resistance of the needle roller will not be able to spin. Therefore, the total circumference clearance of the bearing should be controlled within the range of 0.1-0.4mm.
2, fatigue peeling
If the radial clearance between the cross shaft and the bearing gradually expands due to wear, the load will be concentrated, and the fatigue indentation will occur in the place where the load is relatively large, and the fatigue flaking will eventually occur and be large.
3, lack of oil ablation
If the lubrication is not in place or insufficient lubrication, or the bearing seal is poor, it will lead to the loss of oil in the bearing, or the aging phenomenon and cracks in the sealing material. If there is no lubricating oil, the temperature of the cross shaft universal shaft will be too high in use, causing the bearing and journal to bite, etc., so that the surface of the ring will be ablated.
4. Needle roller or gasket failure
If there are pitting pits on the surface of the needle roller, or the needle roller is broken, the needle roller fails. The failure of the gasket is mainly because the gasket is broken, or the gasket is worn. These are related to the size and structure of bearings and gaskets, so they should be designed reasonably. The material of gasket should be selected with relatively high strength and wear resistance to avoid this phenomenon.
When we understand what are the causes of the failure of the cross-shaft cardan shaft, we can cope with it calmly, and can take some effective measures to solve the corresponding problems, and can be more smooth in future use.