Power Transmission Assembly (Torque Amplification Core) The drilling drawworks does not run at high speed directly; it relies on the speed-reducing transmission mechanism to achieve speed reduction and torque increase, converting the high-speed, low-torque output of motors and diesel engines into the low-speed, ultra-high-torque required for operations. 1. Multi-Stage Reduction Gear Sets High-strength alloy steel helical gears and herringbone gears with precision-ground tooth