When shopping for a new RC (remote control) car, one of the most important pieces of information to consider is the gear ratio. The gear ratio of an RC car determines its speed and acceleration, so it’s important to understand how to calculate it properly. To find the gear ratio of an RC car, you need to know the number of teeth on the pinion gear and spur gear, as well as the vehicle’s wheel diameter.
The first step in finding the gear ratio of an RC car is to measure each gear in the drivetrain.
For most RC cars, this includes both a pinion and spur gear. The pinion gear is usually smaller and located near the motor, while the spur gear is larger and connected to the drive shaft that powers the wheels. To measure these gears correctly, you’ll need a ruler or caliper that can accurately measure their diameters in millimeters.
Once you have measured each gear, you can then calculate their respective numbers of teeth by dividing their diameter by 2mm (the standard measurement for tooth size). For example, if your pinion has a diameter of 10mm, then it will have 5 teeth (10 divided by 2). Once you have both numbers, simply divide one by the other to get your final gear ratio.
For example: If your pinion has 5 teeth and your spur has 25 teeth, then your final ratio would be 5:25 or 1:5.
Understanding how to calculate an RC car’s gear ratio can help you make an informed decision when purchasing a new vehicle. It’s important to remember that higher ratios mean better acceleration but slower top speeds while lower ratios give faster top speeds but poorer acceleration. You should also consider other factors such as battery life and weight when choosing which vehicle is right for you.
In conclusion, finding out how to calculate an RC car’s gear ratio requires measuring each individual component in its drivetrain – namely its pinion and spur gears – and then dividing one number by another. Higher ratios provide better acceleration but slower top speeds while lower ratios provide faster top speeds but poorer acceleration. Ultimately, understanding how to find this key piece of information can help make sure that you choose an RC car that suits your needs perfectly.
