The Gears (5mm bore) are made from Hardened steel material, RNC nitrogen-based chain super wear-resistant extrusion wheel The overall hardness of the hardened steel substrate reaches HRC60 , The more wear-resistant surface adopts RNC-based nano-coating, ultra-high hardness HV3300 Curved teeth beat 0.03mm, Which is closely matched with the shaft and has high concentricity, The driving force is 15KG. Hardened steel. All-metal high-temperature printing at 500 ℃, compatible with multiple models. The dimensional accuracy of the inner hole is 0.02mm, which is closely matched with the shaft and has high concentricity
