The wheel hub assembly is a critical component of a vehicle’s suspension system. It provides a secure, stable, mounting point for the wheel. The wheel hub assembly houses the wheel bearings that facilitate the smooth rotation of the wheel. The wheel hub assembly also integrates with other vehicle systems, such as the traction control and anti-lock braking systems. A properly functioning wheel hub assembly is essential to ensure safety and optimal performance while out on the road.
What is a wheel hub assembly and how do you know when you need a new one?
What is the wheel hub assembly on a truck?
The component parts of a truck need to be robust and durable, capable of withstanding heavy loads and variable road and weather conditions. The hub assembly on a truck plays an essential role in ensuring that the vehicle is safe, efficient, and functional.
Hub assemblies on trucks are designed to accommodate larger wheels and heavier loads. To reduce wear and friction on the axle they include integrated wheel bearings. For heavy-duty trucks with a busy workload, assemblies feature reinforced materials that can effectively handle extreme daily stresses.
Truck assemblies also incorporate ABS sensor rings to ensure that braking systems are effective and reliable. This is an important safety feature for trucks due to their size and load requirements.
What is a truck hub assembly made of?
What is a wheel hub assembly made of, and why are the quality of its components so critical to its efficiency and longevity?
Truck hub assemblies are made from a combination of tough, highly durable materials that have been engineered to withstand the rigours of heavy loads, extreme conditions, and high stress. Some of the common materials used in the construction of truck wheels hubs include:
- Steel
Steel has a very high tensile strength which makes it resistant to deformation. It’s used for the steel body or housing of the hub assembly due to its capacity to handle the weight and torque produced by a truck.
- Alloyed metals
Advanced alloy metals are used in some components of the hub assembly. This reduces weight without compromising on strength. Alloys can be developed to be corrosion resistant, helping to extend the lifespan of the component.
- Bearings
Bearings in a truck hub assembly are usually made of high grade steel. This minimises friction and ensures smooth rotation.
- Seals
Seals protect the bearing from contaminants, moisture, and dirt. These are made of rubber or composite materials.
- Sensors & electronic materials
Modern hub assemblies integrate ABS sensors and other electronic components. These are made from high quality plastics, copper wiring, and other conductive materials.
How do you know if you need a new wheel hub assembly?
Vehicle safety and performance requires a smoothly operating wheel hub assembly. There are some common signs that a truck may need a new hub assembly:
- Noise while driving
Unusual noises, such as grinding, humming, or growling that comes from the wheel area may indicate damaged or worn wheel bearings within the hub assembly.
- Vibration or wobbling wheels
Vibrations or wobbling in the steering wheel or the vehicle body can indicate a loose or failing hub assembly. This can quickly compromise the vehicle’s handling and stability, particularly at higher speeds.
- ABS warning light
Because hub assemblies include ABS sensors, a faulty hub may trigger the ABS warning light. If the ABS light on your dashboard is lit, it might indicate a problem with the sensor or with the assembly itself.
- Uneven tyre wear
One of the most common signs of a failing wheel hub assembly is uneven or rapid tyre wear. If one tyre is showing signs of faster wear than the other, then the condition of the wheel hub assembly should be investigated.
- Steering or braking difficulties
When a hub assembly is failing, the steering and braking capabilities of the truck may be impacted. This can make it harder to control the vehicle and can quickly represent a serious safety challenge.
- Visible damage or corrosion
Regular inspections of the wheel hub assembly can reveal cracks, corrosion, or other visible damage that may indicate a potential issue. If the hub appears compromised, then it may be time to replace it to prevent further issues from developing.
Expert advice and high quality parts from CV Hubs & Bearings
At CV Hubs & Bearings, we’re specialists in all things HGV, bus, and trailer wheel hubs and bearings. Our experienced team is always on hand to answer any questions you may have.
We stock an extensive range of wheel hub components for a wide range of vehicles.
Contact us to find out more about our services
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