What parameters do you need to know when replacing a car wheel hub?

Nowadays, the first thing many friends do after buying a car is to "decorate" their cars, such as laminating and installing some sports kits. However, many small partners have made it difficult to change the wheels of their cars. As an indispensable part of the car, what are the specific parameters of the wheel hub? What should they pay attention to when changing the wheel hub? Let's talk about it today.

In fact, we often say that the hub parameters mainly include diameter, width, PCD and hole position, offset and center hole.

The diameter is easy to understand, that is, the size of the hub. Usually when we say 16 inch hub or 17 inch hub, we mean its diameter in feet.

The width of the hub is what we commonly call J value. However, the width of the hub will directly affect the choice of tires. In other words, for tires of the same size, the flatness and width of the selected tires are different due to different J values.

The name PCD may not be familiar to most of our friends. Generally speaking, it is the pitch circle diameter. Pitch diameter refers to the diameter between the fixing bolts in the center of the hub. Taking 5* 1 12 as an example, it shows that the PCD of this hub is 1 12mm.

The offset of the hub also has an English name, which is commonly known as et value. ET value refers to the difference between the middle screw fixing seat of the hub and the center point of the whole rim.

The central hole of the hub is best understood. The center hole is the part used for fixed connection with the vehicle, that is, the position of the hub center and the concentric circle of the hub.

Knowing these hub parameters, is it much easier to change the hub?

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This article comes from car home, the author of the car manufacturer, and does not represent car home's position.