In various types of automotive and machinery systems, the transmission shaft is an important component that acts as a connecting link between the engine and the wheels to enable smooth rotational power transmission. It serves three purposes, all of which are important: transferring engine torque to the differential; accommodating the offset between the engine and driven wheels; and enabling speed variation. And high-quality materials, precise balancing and intelligent construction techniques make this saw a real workhorse tech. From passenger cars to heavy-duty trucks, and through virtually all industrial equipment, those applications make onboard electricity an integral part of modern transportation and industry.