What is a block sheave?
Sheave blocks are pulleys incorporated into rigging systems to increase their lifting and pulling capacity. (126 items in Sheave Blocks)
How do you mount sheave?
Starts here1:16Sheave Installation and Alignment Video – YouTubeYouTubeStart of suggested clipEnd of suggested clip60 second suggested clipUse a straightedge or laser alignment tool to align the SHIVs once the SHIVs are properly alignedMoreUse a straightedge or laser alignment tool to align the SHIVs once the SHIVs are properly aligned fully tighten the motor foot bolts and taper lock bushing bolts.
What does pulley block mean?
pulley-block Add to list Share. Definitions of pulley-block. a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope. synonyms: block, pulley, pulley block.
What is a sheave wheel’s 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.
What is single sheave block?
The sheave block is the actual casing that contains the pulley, which may be a single pulley or there can be more than one separate pulley within the casing.
Why is it called a block and tackle?
Invented by Archimedes around 250 BC, a Block is a set of pulleys on an axle in a housing. When rope is run through a block or a series of blocks, the whole assembly is called a Tackle.
How do you align sheaves?
Starts here7:27How to Align the Sheave to the Flywheel and Set Proper V-Belt …YouTube
How do you replace a sheave?
Starts here1:10Sheave Change – YouTubeYouTube
What does a block and tackle do?
block and tackle, combination of a flexible rope, or cable, and pulleys commonly used to augment pulling force; it can be used to lift heavy weights or to exert large forces in any direction.
What does a headframe do?
A headframe (also known as a gallows frame, winding tower, hoist frame, pit frame, shafthead frame, headgear, headstock or poppethead) is the structural frame above an underground mine shaft so as to enable the hoisting of machinery, personnel, or materials.
What are crane sheaves?
They are used in tandem with a rope, belt, or cable to lift items with a crane. Essentially, a sheave is a wheel with an open groove that a rope or cable fits around so it can rotate around the exterior.