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Roller chain is a common type of chain drive for mechanical power transmission on various machines. Learn about its history, design, variants and how to lubricate it for optimal performance and longevity.
Chain drive is a way of transmitting mechanical power from one place to another by a roller chain passing over a sprocket gear. Learn about the origins, alternatives, advantages and disadvantages of chain drive, and how it is used in vehicles, machines and other applications.
Learn about the most commonly used type of general-purpose screw thread worldwide, with the letter M followed by the nominal diameter and pitch in millimetres. Find the preferred sizes, tolerances, standards and examples of ISO metric screws, including M8 bolts.
Mechanical advantage is a measure of the force amplification achieved by using a tool, device or machine system. It depends on the input and output forces, velocities and distances of the system, and can be calculated using the law of the lever, gear ratio or chain and belt drives.
16 tooth sprocket. Do = Sprocket diameter. Dp = Pitch diameter A sprocket and roller chain. A sprocket, [1] sprocket-wheel [2] or chainwheel is a profiled wheel with teeth that mesh with a chain, rack or other perforated or indented material. [3] [4] The name 'sprocket' applies generally to any wheel upon which radial projections engage a chain ...
In spur and helical gears, unless otherwise specified, the standard pitch diameter is related to the number of teeth and the standard transverse pitch. Standard reference pitch diameter can be estimated by taking average of gear teeth tips diameter and gear teeth base diameter. [1] The pitch diameter is useful in determining the spacing between ...
Whitworth's new standard specified a 55° thread angle and a thread depth of 0.640327p and a radius of 0.137329p, where p is the pitch. The thread pitch increases with diameter in steps specified on a chart. The Whitworth thread system was later to be adopted as a British Standard to become British Standard Whitworth (BSW).
A dumb pulley can lift very large masses a short distance. It consists of two fixed pulleys of unequal radii that are attached to each other and rotate together, a single pulley bearing the load, and an endless rope looped around the pulleys. To avoid slippage, the rope is usually replaced by a chain, and the connected pulleys by sprockets.