What do the letters on a car wheel balancer represent?

[DeColton]

On a car wheel balancer, the letters represent: a is the distance from the rim to the machine, b is the rim width, c is the rim diameter, and ALU is the balance mode selection. Here are the specific details about car wheel balancers: 1. The reason for using a car wheel balancer: A car's wheel is an assembly consisting of a tire and a rim. However, due to manufacturing reasons, the mass distribution of this assembly is not perfectly uniform. When the wheel rotates at high speeds, this creates an unbalanced state, resulting in phenomena such as wheel wobbling and steering wheel vibration during driving. 2. The function of a car wheel balancer: The purpose of a car wheel balancer is to prevent or eliminate this unbalanced state during vehicle operation. It achieves this by adding counterweights to the wheel in dynamic conditions, thereby correcting the balance at various edge points of the wheel.