Belt and Pulley
System
•A belt and pulley system is characterized
by two or more pulleys in common to a belt. This allows
for mechanical power, torque, and speed to be
transmitted across axes and, if the pulleys are of differing
diameters, a mechanical advantage to be realized.
A belt drive is analogous to that of a chain
drive, however a belt sheave may be smooth (devoid of discrete interlocking
members as would be found on a chain sprocket, spur gear, or timing
belt) so that the mechanical advantage is given by the ratio of the pitch
diameter of the sheaves only (one is not able to count 'teeth'
to determine gear ratio).
