This chapter contains information about pulleys
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Pulleys and gears are used for transmission of power from one shaft to another by means of belts or through direct contact. They are made of castiron, wroughtiron, steel, wood, or plastic.
A pulley may be cast in one piece or may be builtup from separate parts. The three parts of a belt pulley are-—hub or boss, the arms, and the rim as, shown in Fig. A13.1.
Fig. A13.1 Belt pulley with straight arms ...