IMPORTANCE OF CAR WHEEL ANGLE ALIGNMENT

Wheel angle, also known to many as “pinch”, is a factor that directly affects your safety when driving. However, many people often “subjectively” think that wheel angle alignment is not too necessary and does not greatly affect the vehicle’s operation on the road – This is a very wrong notion! So what is the wheel angle? Why is wheel alignment important?

In the article below, CarOn will answer your questions!

What is the wheel angle?

Wheel placement angle is the relative position of the wheel compared to the vehicle body as specified by the manufacturer. Set includes: Toe, Caster corner. Camber angle, etc. Correctly aligned wheel angle will ensure safety when driving, the vehicle will run smoothly, steadily and avoid uneven tire wear.

TOE (Wheel toe)

Wheel toe is the difference between the distance between the two tire pads measured from the rear and the distance between the two tire pads measured from the front so they are on the same vehicle axle. When checking or maintaining, adjusting Toe means aligning straight in the direction of translation of two wheels on the same axis. The precision is 0 when the two wheels are parallel.

TOE – Wheel toe

Toe specifications are divided into two types: Toe in and Toe out. The Toe-in phenomenon occurs when the distance between the two tire pads at the front is shorter than the distance between the two tire pads at the rear, while Toe-out (Negative toe ratio) is the opposite.

The way to identify Toe-in or Toe-out is quite simple, because it directly affects the smoothness of the vehicle’s operation. Specifically, when the driver notices that the vehicle’s front end and steering wheel are vibrating and are not sensitive when controlling, they should continue to check the tires. If the tire wears unevenly, the wear has a jagged shape between the tire treads, or more seriously, the tire is damaged, these are signs of Toe-in and Toe-out phenomenon, at this time you only need to go to the hospital. service center to realign the wheel angle. To be more precise about tire wear, too positive the tread will corrode the outer tire, and too negative will corrode the inner tire.

GCaster’s brain

Caster angle is the angle between the vertical column of the wheel and the steering column. It directly affects the steering speed of the steering wheel and the turning radius. The smaller the Caster, the lighter the steering wheel. That is an important factor in wheel angle alignment that technicians need to pay attention to. Especially for pickup trucks that often have to carry heavy loads, the spring will be weak or sag to the bottom, affecting the Caster angle. If you want to ensure the Caster angle is always at the standard level, the user must ensure the frame is at the design height.

Caster Corner

So when is the Caster angle equal to 0? Caster is 0 when the rudder rotation axis is vertical. Positive Caster (Positive Caster) when the rudder rotation axis leans back, Negative Caster (Negative Caster) when the rudder rotation axis leans forward. Although the incorrect Caster angle will not cause tire wear, if one wheel has a more positive Caster than the other, the wheel will pull towards the center of the vehicle, causing the vehicle to tend to roll. The wheel side has a lower positive Caster coefficient, which does not ensure safety for the driver when moving

Camber Corner

Camber angle is the angle between the vertical axis of the guide wheel and the vertical axis of the vehicle when viewed from the front or rear. Camber angle is 0 when the wheel is perpendicular to the road surface, Positive Camber when the wheel leans outward, Negative Camber when the wheel faces inward. Whether the angle is positive or negative, it also reduces the contact surface of the wheel with the road surface, uneven wear between the tire and at different locations on the tire, which can be dangerous if the angle is not adjusted. Replace the wheel correctly.

Camber Corner

There are also parameters such as King pin (tilt of the steering column), Thrust Angle (angle of deviation between the vehicle’s central axis and the axle’s movement axis). Adjusting these parameters to the manufacturer’s standards is called “Total Wheel Alignment”.

When do you need to adjust the wheel angle?

Improper wheel angle will cause unpredictable harm, so aligning the wheel angle is extremely important and necessary. But when do we need to align the wheel angle? If your car encounters one of the following situations, check the wheel angle to have the earliest solution:

When do you need to align the angle of your car’s wheels?
  • After the vehicle experiences major shock (climbing high curbs, collapsing potholes, potholes, etc.).
  • After the car has an accident or a strong collision.
  • After replacing spare parts on the underbody and suspension system.
  • After replacing new car tires.
  • When the vehicle moves on a straight, flat road but tends to deviate left or right. This causes fatigue for the driver and affects safety when participating in traffic.
  • When you corner or turn, the steering wheel does not return easily or is difficult to balance.
  • When you detect uneven tire wear.
  • The steering wheel is misaligned.

The importance of car wheel angle

After a period of operation, many factors will affect it such as: Bad terrain, hilly roads, sidewalks, gravel, overloading, collisions, etc. At this time, a deviation in the wheel angle will appear. The wheel angle plays an important role, because it directly affects the safety of the vehicle owner, causing many serious dangers. Especially when the car is running at high speed on the highway or on long journeys.

Not only that, if the wheel angle is not correct, the tire’s useful life will be shortened, at this time only a part of the tire will be in contact with the road surface, causing uneven wear, possibly on the shoulder or inner shoulder. If not controlled, it can cause the tire to explode at high speed. Extremely dangerous.

The importance of angle alignment

In addition, the phenomenon of steering will appear, when you go on a flat road, the steering wheel is straight, the car is still tilted to the vertical. Not only that, vehicle angle deviation also causes the vehicle to steer poorly when cornering.

Therefore, aligning the wheel angle is a way to help the vehicle return to its original state, helping the vehicle operate stably and smoothly and avoid wear and tear on tires, mechanical details, etc. And especially for safety. completely during operation

Benefits of correctly aligning the wheel angle

Aligning the wheel angle will help tires avoid:

  • Uneven erosion phenomena
  • Tire life increases
  • Save costs
  • The steering wheel does not jerk or misalign when operating
  • Safe when moving

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