The electric motor rotating shaft is horizontal, the travel pinion spin axis is also horizontal. The difficulty is these axes are not aligned, they are parallel to one another. The Cardan Shaft redirects the travel shaft to the drive pinion without changing the way of rotation.
Widely used in industry, cardan shafts have proven practical upon applications where space is limited-as well when in Cardan Shaft china circumstances where an factor in the machine train (e.g. paper roll) might need to be actuated (dynamically positioned) to another position when the equipment are not jogging. The universal joint allows for limited activity without uncoupling. To ensure sufficient lubrication circulation, which in turn helps prevent the universal joints from seizing, cardan shafts are normally installed with an angle from four to six 6 degrees at the universal joints. Experience, though, has shown 
that the angle between the shafts of the driver and influenced unit ought to be kept to a minimum, preferably less than 4.36 mrads (0.25 degrees). Ideally, the angles between the driver and motivated shafts and the cardan shaft, proven as β1 and β2 in Fig. 1, would be equal. Geometrically, this would mean zero angularity existing between your driver and driven product: In other words, the shafts of the driver and influenced machine will be parallel to each other.
Usually it contains a tubular shaft, two sets of Universal Joints and glove system – ferrule stepper, among others. It can be a element of the transmission program, its function can be to redirect the engine turning movement, after moving through the gearbox and the drive to the wheel, going right through the ‘planetary and satellite’ system etc.
Our specialised personnel will gladly support you in finding the proper universal joint for the application or will develop a suitable solution according to your specific requirements.
Cardan shaft, also referred to as cardinal shaft, is a component of torque transmission.
