3 3/8 tachometer

• 2022-04-26

We not only have 52mm(2") tachometer, but also have 85mm(3-3/8") tachometer.

The 3 3/8 tachometer can be used to determine whether the car really starts. Some novice drivers are often uncertain whether they have successfully started the car when igniting. Others will turn the key again at this time, but doing so will damage the starting motor. The best way is to look up at the tachometer. As long as it is stable between hundreds of revolutions, it means that the car has started successfully.

The tachometer allows you to determine the timing of gear changes. In homemade gear, when the auto machine reaches 2000 to 3000 rpm, the shift consumption is the least. Thus, the tachometer can just help us determine the stylish shift timing.

There is a red area on the tachometer. When the pointer reaches here, it indicates that the engine speed has reached more than 6000 rpm. For the engine, the limit speed of the engine is marked in the red area. Maintaining it in high load movement for a long time will cause poor heat dissipation of the engine and eventually damage mechanical parts.

The teacher who repairs the car can judge the state of the car through the display on the tachometer when the engine is idling, such as whether the engine has carbon deposition and so on. The tachometer is an important reference to reflect the working condition of the engine. Learning to look at the tachometer can save a lot of trouble.

Centrifugal tachometer is composed of transmission part, receiver and index. It's one of the most traditional speed dimension tools. Its main advantages are simple structure, accessible use and low delicacy. Its working principle is a tachometer formed by using the principle of centrifugal force of rotating mass and gyration angle or proportion. When the shaft of the tachometer rotates, the weight on the centrifuge leaves the shaft center under the action of inertial centrifugal force, and drives the needle to rotate through the transmission device. The rotational speed of the shaft is determined according to the position of the pointer where the inertial centrifugal force and the spring force are balanced.

The glamorous tachometer uses the rotating glamorous field to induce the rotating force on the essence cap, and uses the balance between the rotating force and the hairspring force to indicate the rotating speed. Glamorous tachometer is a model of successful use of glamorous force. It's a mechanical tachometer grounded on the principle of glamorous force. It's generally installed locally, and it can be installed in a short distance with a flexible shaft. Due to its simple structure, the flexible shaft of the glamorous tachometer is easy to be damaged when installed in different places.