This helical gear uses AISI 8620, a low-carbon nickel-molybdenum carburized steel. After carburizing, the surface layer can easily achieve a high hardness of 58-62 HRC, making the tooth surface particularly wear-resistant and less prone to wear and pitting during high-speed rotation. The internal core of the custom helical gear has excellent toughness, capable of withstanding the rapid acceleration and braking of a car, preventing breakage at the gear root and effectively extending the gear’s lifespan.
Furthermore, the helical gear’s inherent spiral inclined tooth structure allows for gradual contact during gear meshing, with multiple teeth sharing the force, reducing impact and vibration during operation and minimizing noise.
