The material used for these gears is 20CrMnTi, which is a low-carbon alloy steel. This material is known for its excellent strength and durability, making it suitable for heavy-duty applications in agricultural machinery.
In terms of heat treatment, carburization was employed. This process involves introducing carbon into the surface of the gears, resulting in a hardened layer. The hardness of these gears after heat treatment is 58-62 HRC, ensuring their ability to withstand high loads and prolonged use.