Conditions for ‘V’ Belt drive selection :
1. Great amount of Power to be transmitted,
2. Requirement of the high velocity ratio (maximum 10).
3. Small Centre distance between the shafts
4. Positive drive requirement
5. Compact Space
Slip of belt : The motion of belts and shafts assuming a firm frictional grip between the belts and the shafts. But sometimes, the frictional grip becomes insufficient. This may cause some forward motion of the driver without carrying the belt with it. This may also cause some forward motion of the belt without carrying the driven pulley with it. This is called slip of the belt and is generally expressed as a percentage.
Motion of the Follower :
1. Uniform velocity, 2. Simple harmonic motion,
3. Uniform acceleration and retardation, and 4. Cycloidal motion.
Each part of a machine, which moves relative to some other part, is known as a kinematic link.
When the kinematic pairs are coupled in such a way that the last link is joined to the first link to transmit definite motion (i.e. completely or successfully constrained motion), it is called a kinematic chain.
