Universal Joints In a Car

The Usage of Universal Joint on a Vehicle

Commonly known as U-joint, Cardan joint, universal coupling joint and Hooke's joint, etc. a Universal Joints Birmingham is a mechanical link between revolving shafts that is used to transmit power, which is usually not equal but intersecting. It is coupling or a joint in a rigid rod that enables the switch to change in a different direction. It consists of a set of hinges closely together, oriented at 90° to each other, attached by a cross shaft. Moreover, it can provide positive transmission of rotating power at a much-extended angle than is allowed with a flexible coupling. Furthermore, it can also transmit motion and torque.

A double Cardan joint drive shaft sometimes overcomes the difficulty of jerky rotation and uses a pair U-joints joined by a central rod with the second U-joint phased about the first U-joint to eliminate the changing angular velocity. It is mostly used in shafts that transmit a rotating movement

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How is U-joint is used in a vehicle?

They are found at the ends of each drive shaft and assist in transporting engine power from the transmission to the drive wheels. But, after a while, they can start to wear out because of many other causes such as vibration. To avoid more serious problems; you should replace the failed U-joints on the drive shaft with new ones. Universal Joints Birmingham is incorporated to perform some basic purposes. Front axle drive shaft end joints the front and attach the final drive and the front wheel steered stub axle. The Rear axle drive shaft end join the final drive and the rear wheel stub axle and finally, the Propeller shaft end joints the longitudinally to the gearbox and rear final drive axle

U-joints can be assigned to of three sections: either non-constant velocity U-joints, near-constant velocity U-joints, or constant velocity U-joints.

Non-constant velocity U-joints

This first one provides the most straightforward and least complex systems. Standard applications are to connect the drive shaft and differential in trucks and automobiles. Industrial machinery, mobile equipment, and farm machinery also widely depend on them.

Near-constant velocity U-joints

This second category is the most commonly used kind of joint that provides a near-constant velocity and has a set of Cardan joints with the second joint compensating for the speed. This type of joint has a ball type head, which is connected to one end of the shaft.

Constant velocity U-joints

It is said that this kind of joints can operate more smoothly and at higher speeds than the other types because of their constant velocity characteristics. However, they also have many disadvantages. For example, they are more complex and expensive. Furthermore, they do not carry loads as heavy as non-constant-velocity types.


A Universal Joints Birmingham helps to transfer mechanical power within two shafts when their axes are at a parallel angle. Now you can see why the U- joint is also an important mechanical part. It plays a crucial function in making the joints flexible so that power can be transmitted at an angle.