What is Transmission Gear Ratio?

[VonKendra]

Transmission gear ratio refers to the situation where two gears of different diameters mesh together and rotate. Naturally, the larger-diameter gear will rotate slower than the smaller-diameter gear. Their rotational speed ratio is inversely proportional to the gear diameters. The engine's rotational speed in a car is altered by the gear set inside the transmission before being transmitted to the wheels. Below are detailed explanations: 1. Influencing Factors: The correct gear ratio should be selected through continuous testing based on the motor's T-number, the track's grip, the size of the venue, and the characteristics of the curves. It should ensure both quick starts and high speed on straight sections. 2. Calculation Method: Large gear motor gear = external gear ratio, differential gear bevel gear = internal gear ratio, external gear ratio X internal gear ratio = gear ratio. Generally, the internal gear ratio is fixed, so changing the gear ratio usually involves replacing the large gear or the motor gear.