What is scotch yoke?

A scotch yoke is a mechanical device used to convert rotary motion into linear motion. It consists of a disc or wheel attached to a rod, which moves back and forth in a straight line. The disc is connected to a rotating shaft, causing it to move in a circular motion. As the disc rotates, the rod moves forward and backward in a linear motion.

Scotch yokes are commonly used in applications where precision linear motion is required, such as in engines, pumps, and machinery. They are known for their simple design and efficient operation, making them a popular choice for many industrial applications.

One of the main advantages of scotch yokes is their ability to provide a constant linear velocity throughout the stroke, making them ideal for applications where a smooth and consistent motion is required. However, they can also be prone to wear and tear, as the sliding motion of the rod against the disc can cause friction and eventual failure.

Overall, scotch yokes are a reliable and efficient mechanism for converting rotary motion into linear motion, making them a popular choice for many industrial applications.