Wheel bearings help the wheels of your vehicle rotate smoothly and with minimal friction, making it safer and more comfortable to drive. But wheel bearings have gone through numerous changes in their history, and modern versions offer many benefits you wont get from older components.
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The more you know about how wheel bearings work and how theyve evolved, the better prepared youll be to buy reliable new ones when the bearings you have wear out and need to be replaced. As providers of superior aftermarket wheel bearings for many makes and models, we know all about wheel bearingsread on to get a quick history lesson from us.
Before the invention of wheel bearings as we know them, other types of technology were used to support the weight of vehicles and allow their wheels to rotate. Here are a few of the most common examples:
The most common method was the use of a solid wooden spindle that passed through the center of the wheel. This system was used long before the development of automobilesgoing back as far as carts and chariots used by ancient Mesopotamian and Egyptian civilizations.
The spindle in these systems was supported by the vehicle's frame, and the wheel was mounted on the spindle using a series of wooden or metal pegs or pins. These systems had some limitations and often resulted in a rough ride, as the wooden spindle would wear down quickly and the pins would loosen. Additionally, the wooden spindle would absorb the water and swell in the wet conditions, which would make it difficult to rotate the wheels.
Another technology that was used before wheel bearings were invented is the "trunnion" system. This system uses a trunnion (a cylindrical projection) attached to the wheel hub, which rests on a pivot point on the vehicle's frame. The trunnion system provided a smoother ride than the thru-axle system but still had its limitations, such as the added friction and wear on the pivot point.
In both of the above systems, the wheels were not able to rotate freely and easily, which caused a lot of friction and wear on the wheels, axles, and other components of the vehicle. The invention of wheel bearings greatly improved the smoothness and efficiency of vehicle operation by allowing wheels to rotate freely and with minimal friction.
Early automobiles used various different types of wheel bearings. Some used plain bearings similar to those in carriages and wagons (described above), but the additional weight and forces generated by motor vehicles required new developments in wheel bearing technology as well.
Via KTU Web on YouTube.
Journal bearings were first developed in the late 19th century, and consist of a shaft or journal that rotates inside a stationary housing or sleeve. The journal and the housing have matching shapes (usually cylindrical) and are separated by a film of lubricant like oil or grease. The lubricant cools the bearing while reducing friction and wear between the journal and the housing.
Via ResearchGate.
Some early automobiles also used roller bearings, which came into prominence at the start of the 20th century. These bearings consist of small cylindrical rollers held in place by a cage and reduce friction by distributing the vehicles load over a larger surface area.
As the 20th century stretched onwards, the automobile industry went through major changes. Cars became heavier and fasterrequiring bearing types that could handle even more friction. Although ball bearings and tapered bearings had existed for some time, they became much more common during this period.
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Via Power-MI.
Ball bearings consist of small balls that are held in place by a cage and reduce friction by distributing the load over a larger surface area. They were first used in the front wheels, where the load is relatively light and the speed of rotation is relatively high. Today, most ball bearings are used in steering columns, although a few still remain in wheels for light-duty vehicles.
Via ResearchGate.
These bearings have tapered rollers instead of the cylindrical ones found in roller bearings, and are designed to handle large loads in one direction. They also have a conical shape, with the larger end of the cone on the inner ring and the smaller end of the cone on the outer ringallowing them to handle radial and axial loads.
Like ball bearings, tapered roller bearings were first used in the front wheels of automobiles. While not commonly used in wheels any more, they were an important step towards current wheel bearing technology.
The use of tapered roller bearings in front wheels eventually led to the development of the hub bearing unit, which is the most common format for vehicle wheel bearings today.
Hub assemblies are single units that integrate the wheel hub and bearing (usually a tapered bearing for early models). The advantages of hub assemblies are:
Via 365HubsPro.
As the automobile industry progressed, manufacturers began to experiment with new types of bearings and lubrication systems to improve performance and reliability. Today, high-quality hub assemblies like the ones we sell often consist of the following components (depending on the make and model of the vehicle theyre designed for):
Modern wheel bearings are designed to handle higher amounts of force than older versions, but thats not all. Our best-in-class aftermarket hub assemblies are also designed to last longer, with better seals to prevent them from failing prematurely and ABS rings that eliminate false signals so you can enjoy the smoothest possible ride.
Browse our online parts catalog to find the best hub assembly for your vehicleand feel free to contact us if you have any questions about the products we sell! Well be happy to tell you all about our hubs and bearings so you can order replacements for your vehicle with confidence.
Contact us to discuss your requirements of Wheel Hub Supplier. Our experienced sales team can help you identify the options that best suit your needs.