Activity 1.1.4 Pulley Drives and Sprockets
Introduction
Pulleys and sprockets achieve the same tasks as gears by transferring powerthrough rotary motion. Depending on how pulleys and sprockets are applied, speed,direction, and torque can be modified within the system. Pulleys and sprockets areboth used in everyday machines ranging from industrial applications to movingprinter heads within a desktop printer. Typically, belts and pulleys are easier tomanufacture, lighter weight, and less expensive to purchase than sprockets andchains. Although chains and sprockets are more difficult to manufacture and oftennoisier, they have the advantage of not slipping as easily and tend to be moredurable then a belt and pulley system.
Pulleys and sprockets achieve the same tasks as gears by transferring powerthrough rotary motion. Depending on how pulleys and sprockets are applied, speed,direction, and torque can be modified within the system. Pulleys and sprockets areboth used in everyday machines ranging from industrial applications to movingprinter heads within a desktop printer. Typically, belts and pulleys are easier tomanufacture, lighter weight, and less expensive to purchase than sprockets andchains. Although chains and sprockets are more difficult to manufacture and oftennoisier, they have the advantage of not slipping as easily and tend to be moredurable then a belt and pulley system.