Axle parts facilitate the transfer of torque from the transmission and differential to the wheels, enabling vehicle propulsion. These components are integral to the drivetrain, specifically within the front, rear, or both axles of most vehicles. Key parts include axle shafts, constant velocity (CV) joints allowing for angular motion, wheel hubs for mounting, and associated bearings and seals. Technical features often involve high-strength alloy steels, precision machining for tight tolerances, and heat-treated surfaces for durability. Variations exist based on drivetrain configuration – including solid, semi-floating, and full-floating designs – impacting load capacity and service requirements.