Yes, we are technically capable of manufacturing gears without performing any heat treatment processes if this is your specific requirement. We can complete all machining procedures including turning, hobbing, shaping, and other finishing works purely based on the original material, skipping the heat treatment solution entirely. Therefore, you could perform heat treatment by yourself in house. Heat treatment is a critical step to balance the surface hardness and core toughness of gears. It can meet your simple needs and lower the cost if under low load capacity and speed. But for most industrial transmission equipment with normal or heavy working loads, it is suitable to perform heat treatment to avoid frequent replacement and extra maintenance costs.