In V-belt drive, belt touches
in cross or regular lay ropes
Regular lay ropes offer following advantages, except
Regular-lay ropes are easy in handling during installation. Lang’s lay ropes are difficult to handle and install.
Stretching in a belt can be controlled by
In a horizontal flat belt drive, it is customary to use
in horizontal belt drive, the loose side is usually kept on the top. On the upper side, the sag of the belt due to its own weight slightly increases the arc of contact with the pulleys and increases the efficiency of drive.
Centrifugal tension in belts
Maximum horse power is transmitted by a belt drive when its velocity is such that the tight side driving tension in belt is equal to
For maximum power to be transmitted
If T1, and T2 be the tight and slack side tensions in the belt, then initial tension will be equal to
The standard angle between the sides of IZ-belt is
In replacing the V-belts, a complete set of new belts is used instead of replacing a single damaged belt because