Mechanical Drive Term 3 V-belt Part 1

One of the following is not considered as advantage for the V-Belt drive :

• It is inexpensive

• Requires lubrication

• Accepts greater misalignment than chains/gears

• Absorbs shock loads

for the system shown in the figure ( A) represent :

• Driver Sheave

• V belt

• The pump

• The shaft

for the system shown in the figure ( B) represent :

• Driver Sheave

• V belt

• The pump

• The shaft

The ratio of the sizes of the sheaves is selected to either decrease or increase the (a)   and torque delivered to the driven shaft.

Belt is usually rubber, stretched between the two sheaves, transmits speed and torque by (a)   between it and the sheave grooves

The distances shown in the figure A/B/C represent the (a)  

For the shown belt system ( A) represent :

• Bottom of sheave groove

• Pitch diameter

• Pitch circle

• Sheave circle

For the shown belt system ( E) represent :

• Bottom of sheave groove

• Pitch diameter

• Pitch circle

• Sheave circle

For the shown belt system ( C) represent :

• Bottom of sheave groove

• Pitch diameter

• Pitch circle

• Sheave circle

Calculate the pulley ratio of the belt drive system shown

(a)