There are various types of power transmission devices commonly used in industry today. Among them for example, chains, gears, v-belts and synchronous belts are widely used. The focus of this exercise will be a general introduction to rubber power transmission belts and more specifically, those v-belts and synchronous belts used in the Heating, Ventilation, Air Conditioning and Refrigeration (HVAC-R) industry.

• Lowest cost means of transmitting power
• Ability to accommodate a wide range of speeds and center distance between driver and driven shaft
• Quiet and clean operation
• Require no lubrication like chains, gears and gearboxes
• Able to absorb shock loads and pulsations
• Can be used for special applications such as clutching and variable speed