What is another word for wheel and axle?
Pronunciation: [wˈiːl and ˈaksə͡l] (IPA) 
Wheel and axle are mechanical components used to transfer energy through rotational motion. In engineering, the terms wheel and axle are often used interchangeably, but there are certain synonyms for the same that are commonly used. Some alternatives to wheel and axle include gear and shaft, cogwheel and spindle, pulley and pin, and roller and pivot. These synonyms are used depending on the specific engineering application. For example, gear and shaft may be used for gear trains, while pulley and pin may be used for lifting mechanisms. Regardless of the synonym used, the function of the component remains the same; to transfer energy through rotational motion.
