Crank and Connecting Rod Apparatus
Product Code : EL-AMLE-10622
Quick Answer: The Crank and Connecting Rod Apparatus is an experimental unit comprising a rotating crank disk, a connecting rod and a fixed cylinder that demonstrates how a crank slider mechanism converts rotary motion into a purely harmonic stroke movement, unlike a normal crank mechanism. The crank radius can be adjusted to three positions on the crank disk, and the resulting stroke length is measured on a millimetre-precise steel ruler fitted to the cylinder.
Unlike a normal crank mechanism, the crank slider used in this apparatus generates a purely harmonic stroke movement, allowing students to generate and study such motion directly. The experimental unit comprises a rotating crank disk, a connecting rod and a fixed cylinder. On one side, the connecting rod is connected to the crank disk via a crank, and the angle of this connection is adjusted using the crank disk itself, with an angle scale integrated into the base plate for reference. Changing the position of the crank on the crank disk adjusts the crank radius across three available positions, and a millimetre-precise steel ruler attached to the cylinder is used to measure the resulting stroke. At the other end, the connecting rod is connected to the fixed cylinder, and this end models the piston.
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Last Updated: September 2026
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