Non Circular Gears

Non Circular Gears:- 

Noncircular gears generally cost more than competitive components such as linkages and cams. But with the development of modern production methods, such as the computer- controlled gear shaper, cost has gone down considerably. Also, in comparison with linkages, non-circular gears are more compact and balanced
and they can be more easily balanced. These are important considerations in high-speed machinery. Furthermore, the gears can produce continuous, unidirectional cyclic motion, a point in
their favor when compared with cams.

Applications:-

1.Where only an over-all change in angular velocity of the driven member is required such machines as printing presses, planers, shears, winding machines, and automatic-feed machines.

2.Where precise, nonlinear functions must be generated, as in mechanical computing machines for extracting roots of numbers, raising numbers to any power, or generating trigonometric
and logarithmic functions.