What is the relationship between speed and torque?

[AnaFitz]

Here is an introduction to the relationship between torque and speed: 1. The product of torque and speed multiplied by k equals power. When the power is constant, speed and torque are inversely proportional. For inverters, torque is high at low speeds; for motors, torque is high at low speeds. 2. Torque represents force, while speed represents velocity. Greater force means more strength, while fast speed only indicates velocity. Greater force allows screws to be tightened more securely, and higher speed enables faster movement, but only if the torque can overcome the resistance that drives the speed up until torque and resistance balance out and stabilize. 3. The voltage and frequency of the motor are specially designed (including variable frequency motors). Motor speed regulation by frequency conversion affects torque. At high speeds, power increases, and torque decreases. At low speeds, torque increases, and power decreases. If it is a medium-frequency motor, its performance is poor at low speeds but good at high speeds.