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A pulley has a bearing that it rides on and a sheave wheel usually has a brass sleeve in it to ride on. A pulley usually has a higher rpm and can take more stress than a sheave wheel. Sheave wheels can have bearings in them, but open ones as opposed to sealed ones in a pulley. Again this has to do with the amount of load required.
It is possible there is no difference. Sailors usually call the 'pulleys' on their boats. 'sheaves'. pronounced 'shivs'. Anyway, the word 'sheave' in English originated in German and means 'pulley'. so go figure.
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OK, so here's a 30-year mechanic's answer. Regardless of what the original terminology was, I believe it has come to mean this: A sheave is a pulley wheel (now referred to as a pulley without the word wheel) that has a grooved circumference. Its original purpose was to transmit and/or multiply mechanical power because it is part of a lever system. A pulley also transmits power, but it is not grooved. Examples: 1) the idler pulley of your car engine, which usually acts as a spring loaded belt tensioner. 2) the guide pulley (known as a sprocket) that shifts the chain from one sprocket to another on the back of a bicycle. 3) the drive belt pulley on a farm tractor used to power old fashioned implements. None of these have grooves.
So, a sheave is a pulley, but a pulley is not a sheave. Either word should get your point across. It has nothing to do with bearings versus bushings. BTW, a "bushing" used as a load bearing surface is really a bearing, it's just not a roller, tapered roller or ball bearing, but that's another argument.
What else can I help you with?
What is the part called where the rope lies on a pulley?
The part of a pulley where the rope lies is called the groove or the sheave. This is the part of the pulley that provides the surface for the rope to run along while the pulley rotates.
Where is force applied in a pulley?
Force is applied to a pulley at the point where the rope or cable passes over the wheel or sheave. This force is used to lift or move objects by leveraging the mechanical advantage of the pulley system.
What is the middle part of a pulley?
The middle part of a pulley is called the wheel or sheave. It is the round component that rotates on an axle and around which the belt or rope travels. The wheel is typically grooved to keep the belt or rope in place and provide a better grip for transmitting force.
When sheave groove is larger than the diameter of rope what will happen?
A sheave groove, such as the groove in a pulley, allows a rope or wire to pass through unhindered by friction or obstructions. The correct size sheave is required to minimize wear and tear on the rope or wire. When grooves become overly worn or are too large, they may allow excessive movement, which stresses the rope and reduces its life. A groove that is too small will compress the rope, breaking fibers or strands, and reducing the lifespan.
What are the three parts of a pulley?
The three parts of a pulley are the wheel, the axle, and the rope or cable that runs over the wheel. The wheel is the round disc that rotates on the axle, the axle is the central rod that the wheel spins on, and the rope or cable is what is pulled to move objects.
Is a sheave or a groove the indented wheel of the pulley?
Sheave is another name for the entire pulley, rather than the indentation.
Explain what a sheave wheel is and what it does?
A sheave or pulley wheel is a grooved wheel often used for holding a belt, wire rope, or rope and incorporated into a pulley. The sheave spins on an axle or bearing inside the frame of the pulley. This allows the wire or rope to move freely, minimizing friction and wear on the cable. (A sheave is actually part of the pulley system.)
What is another word for a pulley?
An another word for a pulley is a sheave or a drum,
What is another name for a v belt pulley?
sheave
What does which and sheave do?
A sheave (/ʃiːv/) or pulley wheel is a grooved wheel often used for holding a belt, wire rope, or rope and incorporated into a pulley. This allows the wire or rope to move freely, minimizing friction and wear on the cable. Sheaves can be used to redirect a cable or rope, lift loads, and transmit power. A sheave (pronounced “shiv”) is actually part of the pulley system. The sheave is the rotating, grooved wheel inside the pulley.
What is a sheave wheel and what is its function?
A sheave (/ʃiːv/) or pulley wheel is a grooved wheel often used for holding a belt, wire rope, or rope and incorporated into a pulley. This allows the wire or rope to move freely, minimizing friction and wear on the cable. Sheaves can be used to redirect a cable or rope, lift loads, and transmit power. A sheave (pronounced “shiv”) is actually part of the pulley system. The sheave is the rotating, grooved wheel inside the pulley.
What a sheave wheel is and What is its function?
A sheave (/ʃiːv/) or pulley wheel is a grooved wheel often used for holding a belt, wire rope, or rope and incorporated into a pulley. This allows the wire or rope to move freely, minimizing friction and wear on the cable. Sheaves can be used to redirect a cable or rope, lift loads, and transmit power. A sheave (pronounced “shiv”) is actually part of the pulley system. The sheave is the rotating, grooved wheel inside the pulley.
What is the Difference between pulley and a gear?
what is
What is sheave height?
The sheave height is the distance between the shortest distance from the tip of the sheave (commonly called a "boom") and the ground. It is common to discuss the sheave height with respect to a piece of equipment and get a number which is the maximum sheave height.
What is the part called where the rope lies on a pulley?
The part of a pulley where the rope lies is called the groove or the sheave. This is the part of the pulley that provides the surface for the rope to run along while the pulley rotates.
Where is force applied in a pulley?
Force is applied to a pulley at the point where the rope or cable passes over the wheel or sheave. This force is used to lift or move objects by leveraging the mechanical advantage of the pulley system.
What is the difference between a lever and a pulley?
A lever is an adaptation of a stick or tree branch. A pulley is an adaptation of a wheel.
