What are the speedometer and odometer?

1 Answers
SanJohn
07/30/25 2:06am
Speedometer: A device that measures and displays the speed of a vehicle. Odometer: A device used to determine whether a car should be scrapped based on the distance it has traveled. Here is some additional information: 1. Speedometer: The speedometer is commonly known as the vehicle speed and mileage meter. It comes in two types: roller counter and dot-matrix LCD screen. It consists of a speed gauge that indicates the vehicle's speed and an odometer that records the distance traveled. 2. Working Principle: The purely mechanical odometer consists of a worm gear mechanism and a number wheel. When the car is in motion, the odometer drive gear (worm gear) installed on the gearbox main shaft drives the odometer driven gear (worm) to rotate. The worm drives a flexible shaft, which then rotates the counter on the instrument panel through the worm gear mechanism, displaying the mileage.
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