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Pulley systems are used in the real world to lift large masses onto tall heights. You might have seen the workers repairing the roof of a house and using the pulley system to lift their tools or materials to the roof. A pulley is an example of a simple machine.A pulley is a wheel with a groove along its edge, also called a sheave, for holding a rope or cable. Pulleys are usually used to change the direction of an applied force or in sets designed to reduce the amount of force needed to lift a load. However, the same amount of work is necessary for the load to reach the same height as would be without the pulleys. The magnitude of the force is reduced, but it must act through a longer distance. The effort needed to pull a load up is roughly the weight of the load divided by the number of wheels. The more wheels there are, the less efficient a system is, because of more friction between the rope and the wheels. Pulleys are often included in the list of simple machines. In the mechanics of pulleys, a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim. Pulleys are used singly or in combination to transmit energy and motion. In belt drives, pulleys are attached to shafts at their axes, and power is transmitted between the shafts by means of endless belts running over the pulleys. One or more independently rotating pulleys can be used to gain mechanical advantage, especially for lifting weights. The shafts around which the pulleys turn may attach them to frames or blocks, and a combination of pulleys, blocks, and rope is called a block and tackle. Pulleys are widely used in numerous material handling processes and are ideal hoisting equipment. The pulley system is used to lift large masses onto different heights. The pulley system consists of one or more pulleys and a rope and a cable. The number of pulleys used can be increase or decrease the mechanical advantage of the system. Most often, the higher the mechanical advantages the easier it is to lift the object that is being lifted. They are designed for different weights for different applications. They are available in different types such as round belt, flat belt, v-belt pulleys, idler pulleys, belt pulleys etc. As per requirement. V-belt and flat belt pulleys are used in transmission and power transmission systems. The various types of pulleys include fixed pulleys, which have a fixed axle. A fixed pulley is used to redirect the force in a rope; movable pulleys, which have a free axle. A movable pulley is used to transform forces; and the third type is compound pulley, which is a combination fixed and movable pulley system.
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Featured Suppliers of Pulleys
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A G Engineers |
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Drum Motor Motorised Conveyor Pulley,
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Conveyor components,mechanical power transmission components, all kinds of industrial ,belts ,timming pulleys, conveyor belts fabrication & asembly /designing of conveyor systems |
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Belcon Engineers |
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Timing belts,timing pulleys,poly v belts, flat belts,sandwich belts,v belts,conveyors,pu round belts, caterpillar,feeders,coated belts,tyre couplings, rubber belts |
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Timing belts,timing pulleys,poly v belts, flat belts,sandwich belts,v belts,conveyors,pu round belts, caterpillar,feeders,coated belts,tyre couplings, rubber belts |
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Esbee Machinery |
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Authroised dealer / stockists of conveyor chains / attachment / belts, roller conveyors / floor conveyors, sprocket wheels, material handling equipment, flexible couplings, timing belts / timing pulleys. |
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Conveyor chains / attachment / belts, roller conveyors / floor conveyors, sprocket wheels, material handling equipment, flexible couplings, timing belts / timing pulleys. |
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Essar Industries |
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Shipping eqpmnt |
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Conveyors,grabs,cranes,pulleys,tongs,lifts |
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Gk Venkatesh |
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Gk venkatesh, the company is one of the manufacturers and suppliers of pulleys including v pulleys, step pulleys, trolley wheels, sprockets. |
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V Pulley,
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V pulleys, step pulleys, trolley wheels, sprockets |
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Naveen Projects Ltd |
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Manufacturer of bulk material handling equipment, environmental engineering items and conveyor components like, idlers, pulleys, sector gates, flap gates, gear couplings, industrial gear boxes, suction rod pumps for oil exploration and production, specialised equipment for tyre industry, solar thermal energy system, etc. |
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Pipe conveyors, belt conveyors, bulk material handling equipment, conveying equipment, pulleys, gear boxes etc. |
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Pix Transmissions Limited |
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V- belts and hoses to suit various power drive needs, such as wrap construction v-belts, cut edge belts, ribbed belts, automotive belts, agriculture belts, tractor belts, synchronous belts, hoses and hose assemblies, end fittings, pulleys and many other accessories. |
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V- belts and hoses to suit various power drive needs, such as wrap construction v-belts, cut edge belts, ribbed belts, automotive belts, agriculture belts, tractor belts, synchronous belts, hoses and hose assemblies, end fittings, pulleys and many other accessories. |
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Radial Engineering Works |
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Mfrs. And suppliers of all textile gears, shafts, pulleys against cat. No. & other textile accessories textile machinery spares, components & accessories |
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Rakidev Enterprises |
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Dealing with industrial products, machine tools and components. |
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Nylon flat-belts, nylon round belts, timer belts, timer pulleys, variable speed belts, poly-v-belts , belts. |
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Trb Exports Pvt. Ltd. |
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Mfrs. & exporters of :
bicycle parts/moped parts/needle roller bearings.
spl. In multi-speed chain wheels, freewheels, wheelpulleys, shockers, sprockets & silencers for mbk & pgt mopeds bicycles, components & spares |
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Universal Traimpex |
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We take this opportunity to introduce ourselves as merchant exporter. We are dealing in diesel engine & spare parts, castings for cylider liner & sleeves, pulleys & casting as per patterns. |
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Casting for pulleys, machine tools kit, cylinder liner & sleeves, as per pattern. |
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