Induction hardening is primarily used in applications where increased surface hardness and wear resistance are required, without compromising the core strength of the part. These machines are commonly employed in industries like automotive, aerospace, heavy machinery, and tool manufacturing. Parts such as gears, shafts, crankshafts, camshafts, and bearings often undergo induction hardening to improve their wear resistance and extend their operational lifespan. This process is also beneficial for creating parts that must endure high levels of mechanical stress and friction, as the hardened surface provides protection against wear while the softer core absorbs impact forces.