Is a Cardan shaft and a Cardan joint the same thing

A few days ago, a customer came to us to purchase a universal joint and provided us with drawings. Only after our technical team at XinDe reviewed the drawings did we realize that the customer actually needed a CV joint. Despite the slight difference in name, these two things are not the same, so let's not confuse them. Next, XinDe will explain in detail the differences between these two products.
A universal coupling is a transmission device used to connect two shafts, allowing them to transmit power within a certain angular range. It typically consists of two intersecting universal joints and two yokes connected by hinges. Universal couplings can be used to solve issues of misalignment and offset between shafts, and they can transmit large torques while allowing for axial and angular deviations.

On the other hand, a CV joint (Constant Velocity Joint) is a type of joint used in automotive drivetrains. It is primarily used to transmit driving force to the wheels while allowing them to maintain a constant rotational speed during steering. CV joints usually consist of inner and outer casings, balls, and retainers. They can operate within a certain angular range and allow for the interconnection of rotating shafts.
Although both universal couplings and CV joints are related to transmission systems, they have slightly different designs and functions. Universal couplings are used to connect shafts and transmit torque and rotational motion, while CV joints are mainly used in automotive applications to drive the wheels, allowing for power transmission and simultaneous steering. It is important to note that different manufacturers and industries may have different terms and definitions for these components. Therefore, it is best to understand and use them based on the respective definitions and descriptions. If you have any further questions about CV joints or universal couplings, or if you want to purchase couplings, feel free to contact us at XinDe, a coupling manufacturer based in Shanghai!