The suspension ball joint is a crucial component of a vehicle’s suspension system, responsible for connecting the wheel to the vehicle’s structure to allow steering movements and shock absorption.
Like any moving part, it is subject to wear and tear over time, which can result in several symptoms indicative of failure.
In this article, explore the function, lifespan and common signs of a faulty suspension ball joint, from abnormal vibrations to steering problems.
What is the Ball Joint?
The suspension ball joint is a spherical joint that connects the ends of the suspension control rods to the moving parts of the steering.
This component allows the wheel to turn freely in various directions, while supporting the vehicle’s load and absorbing shocks and vibrations from the road.
What is a Suspension Ball Joint For?
This component performs vital functions for the vehicle, such as:
- Allow the wheels to turn;
- Connect the suspension to the steering;
- Support the vehicle’s load;
- Absorb impacts and vibrations.
By allowing it to move freely, the ball joint reduces wear on the suspension system, allowing for a smoother and more comfortable ride.
How does the Suspension Ball Joint Work?
The ball joint contains two sealed ball bearings, which allow it to rotate and absorb shocks from the road. Between the bearings is a rubber that keeps dirt and moisture out, to help extend the life of the joint and keep it working properly.
As the suspension moves up and down, the ball joint allows the wheels to move accordingly, maintaining the ideal angle of the vehicle’s tires. Without the suspension ball joint, the suspension system would not be able to move freely and the vehicle would have a harsher, more uncomfortable ride.
What is the Average Lifespan of a Suspension Ball Joint?
The lifespan of a suspension ball joint can vary depending on a number of factors, such as driving conditions, the make and model of the vehicle and maintenance practices. On average, ball joints can last thousands of kilometers, or even the life of the car.
When to Change Your Suspension Ball Joint?
Due to their role in the suspension system, spherical plain bearings wear out quickly. To prevent the vehicle from malfunctioning, or even road accidents, they should be replaced as soon as they show signs of wear.
On the other hand, if the play is greater or less than that indicated in your vehicle’s manufacturer’s manual, then you should replace the suspension ball joint.
What Causes Suspension Ball Joints to Wear Off?
Although replacement is inevitable, there are some common causes of wear and tear on this component:
- Lack of lubrication;
- Rust or corrosion;
- Friction due to frequent use;
- Components making up the part being damaged (e.g. bent control arm or damaged bushings).
What Are the Symptoms of a Damaged Suspension Ball Joint?
The main signs of wear on this component include:
Vibrations
If the car shakes while driving, it could be a sign that the suspension balls have come loose.
Noises
Ball joints that have come loose in their sockets have the potential to make all sorts of noises, including knocking when driving over bumps or turning.
Irregular Wear on Front Tires
A loose ball joint in the front suspension causes or allows one of the front wheels to become misaligned in relation to the others.
Over time, loose suspension ball joints can cause uneven wear on the inside or outside of the tires.
Loose Steering Sensation
If your vehicle veers to one side, this could also be a symptom of wear on the suspension ball joint.
What are the Dangers of Not Replacing the Suspension Ball Joint?
Failure to replace a vehicle’s suspension ball joint can lead to a series of problems that can put your safety at risk, such as:
- Loss of vehicle control, especially when cornering or maneuvering;
- Damage to the suspension and other components, such as bushes and control arms;
- Wear on the steering and braking systems, causing vibrations and driving instability;
- Irregular tire wear, which can lead to wheel misalignment and poor vehicle performance on wet or slippery roads.
What Tools are Available in the KROFtools Catalog for the Suspension Ball Joint?
If you run a garage and are committed to offering the best service to your customers, then it’s best to be prepared for suspension bearing replacements.
KROFTools offers the following specific tools for this component:
Joint Extractor Set 5Pcs
This rod end puller kit consists of three pullers measuring 18, 24.5 and 28 mm, a 200 mm hand hammer arm and a 200 mm pneumatic hammer arm.
Click on the image to see more information about the Joint Extractor Set 5pcs (ref. 2809).
Ball Joint Extractor 20-50mm
This extractor has a fork opening of 20 mm and allows a maximum clamping width of up to 50 mm.
Click on the image to see more information about the Ball Joint Extractor 20-50mm (ref. 6319).
Hydraulic Ball Joint Separation Kit 30/34/40mm
The jaws in this kit open to 30, 34 and 40 mm, adapting to bolts between 80 and 100 mm long.
Click on the image to see more information about the Hydraulic Ball Joint Separation Kit 30/34/40mm (ref. 6321).
Ball Joint Separation Kit 125mm
With this kit with interchangeable heads, you can adapt the jaws to most ball joints.
Click on the image to see more information about the Ball Joint Separation Kit 125mm (ref. 6322).
7Pcs Ball Joint Spreader Tool Set
This set allows you to dismantle the ball joints without damaging the aluminum or the ball joint itself. It can be fitted to steering knuckles with a centralized or non-centralized position.
Ideal for Audi, BMW, Citroen, Ford, Peugeot, Seat, Skoda and VW spherical plain bearings.
Click on the image to see more information about the 7Pcs Ball Joint Spreader Toll Set (ref. 6330).
How to Extend the Lifespan of a Suspension Ball Joint?
To extend the service life of this component’s ball joint, it is recommended that:
- Avoid excessive loads;
- Keep the suspension system clean;
- Drive carefully on uneven surfaces;
- Carry out regular preventive maintenance;
- Drive carefully on uneven surfaces to avoid impacts.
What is the Price of a Ball Joint?
The price of this part varies depending on the type of vehicle, the manufacturer of the product and its technical specifications.
In general, the average price of a suspension ball joint is 45 euros.
Looking to find out more about the automotive world? Then follow us on Facebook and keep up with all the content we share on a daily basis.
