P.C.M.'s FR series phasers are based on the principle of the epicyclic gearboxes, with the exception that the outer crown is not integral to the body but is coupled to an endless screw.
By turning this screw, called correction, it is possible to increase or decrease the output speed while keeping the input speed unaltered, or rather to change the reciprocal positions between the input and output shafts.
For this reason, the phasers find extensive application in all those areas where it is necessary to maintain a synchrony or a movement timing between the different stages of a machining.
They are therefore used in many different applications such as:
They have the following constructive features: