About Idler Pulleys
Idler pulleys are used to take up slack, change the direction of transmission, or provide clutching action. Idler pulleys are rollers that do not produce any mechanical advantage, nor transmit power to a shaft. Idler pulleys are used to lead a chain around a bend or to take up slack in a drive chain. There are many types of idler pulleys. Examples include an industrial idler pulley and a metric idler pulley. An industrial idler pulley is a pulley on a shaft that rests on or presses against a drive belt to guide it or take up slack specifically used in industries. A metric idler pulley is a pulley system that helps in connecting to distant points through an idler pulley. Idler pulleys are produced in a variety styles such as, V-belt, plain, flat, and cable style. V-belt idler pulleys are designed for strength and durability. The use of radial supporting ribs provides additional belt support and prevents groove deformation. Single flange idler pulleys are designed specifically for use on conveyor corners but can be used for a variety of applications. Flat belt idler pulleys have a molded-in crown which helps to center the belt and prevent rubbing against flanges. Round belt idler pulleys are designed for use with Fenner urethane belts, ropes, or cables. Other idler pulleys are commonly available.
Engineering Web: Idler Pulleys - Machine Design
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FlexLink Systems Inc. | Machine Design Idler pulleys underwent a redesign to get the conveyor speed up. |
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Tension in timing-belt drives | Machine Design Belt pretension Belt pretension (initial tension), Ti, is the tension set by an adjustable idler pulley. |
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Thrust Bearings | Machine Design |
