The electric motor rotating shaft is horizontal, the drive pinion spin axis is also horizontal. The issue is these 
axes are not aligned, they are parallel to each other. The Cardan Shaft redirects the travel shaft to the drive pinion without changing the way of rotation.
Trusted in industry, cardan shafts have confirmed practical on applications where space is limited-as well when in conditions where an factor in the device train (e.g. paper roll) might need to end up being actuated (dynamically positioned) to another position when the machines are not jogging. The universal joint permits limited activity without uncoupling. To make sure ample lubrication circulation, which helps prevent the universal joints from seizing, cardan shafts are usually installed with an angle from 4 to 6 6 degrees at the universal joints. Experience, though, has displayed that the angle between the shafts of the driver and influenced unit should be kept to a minimum, preferably significantly less than 4.36 mrads (0.25 degrees). Preferably, the angles between your driver and powered shafts and the cardan shaft, displayed as β1 and β2 in Fig. 1, would be equal. Geometrically, this might mean zero angularity existing between your driver and driven product: Put simply, the shafts of the driver and motivated machine would be parallel to one another.
Usually it contains a tubular shaft, two sets of Universal Joints and glove system – ferrule stepper, amongst others. It is certainly a component of the transmission program, its function is to redirect the engine turning activity, after moving through the gearbox and the drive to the wheel, going through the ‘planetary and satellite’ system etc.
Our specialised personnel will gladly help you find the proper universal joint for your application or will develop a suitable solution according to your unique requirements.
Cardan shaft, also referred to as cardinal shaft, is a component of torque transmission.