Best Suited Applications for Sealed Wheel Bearings

When it comes to ensuring longevity and safe operation of your trailer, one crucial component is often overlooked: wheel bearings. These parts play a significant role in the overall performance of your trailer, and Trailparts has developed a range of hubs using one-piece sealed bearings that can make a world of difference to the towing experience.


Understanding Sealed Wheel Bearings

Sealed wheel bearings are engineered to withstand the demanding conditions of the road. These bearings are designed with integrated seals that keep out contaminants such as dirt, water, and debris while retaining the lubricant inside. Trailparts has further enhanced the performance of these bearings by adding a secondary marine-grade seal and a sealed grease cap to the design, which not only increases durability but also reduces maintenance requirements.

The Unihub™ sealed bearing is a top choice for towing, particularly for heavy duty trailers, in high use, and in rough conditions. Unihub™ designs have improved dynamic and static load ratings than commonly used taper-roller bearings, which means they can carry higher loads and are more stable under those loads. While Unihub sealed wheel bearings are suited for any application, they’re particularly designed for trailers frequently towing heavy loads or doing high KMs.

1. Car Transporter Trailers

These specialised trailers need to be durable due to the varying sizes and weights of the loads they carry. Unihub sealed wheel bearings offer reliable protection from road debris, moisture, and any contaminants that could compromise the bearings' performance. By maintaining a consistent supply of lubrication and reducing the need for frequent maintenance, sealed wheel bearings contribute to the overall durability and longevity of car transporter trailers. Whether you're moving cars short distances or across the country, sealed wheel bearings are a vital component that ensures the wheels keep rolling smoothly and securely.

2. Boat Trailers

Unihub sealed wheel bearings are an excellent choice for boat trailers. These trailers come into contact with water when loading and unloading, which can be detrimental to traditional wheel bearings. Salt water can corrode unsealed wheel bearings, which leads to frequent replacement and maintenance. Unihub sealed bearings with the added marine grade secondary seals create a protective barrier, preventing water intrusion and corrosion. Whether you're hauling your boat to the beach or setting out on a fishing trip, Unihub will help maintain the integrity of your trailer's wheels.

3. Utility Trailers

Utility trailers come in all shapes and sizes, each with a different purpose. From hauling landscaping equipment to transporting construction materials, utility trailers are usually the go-to. Unihub™ sealed wheel bearings are well-suited for utility trailers because they provide exceptional protection against dust, mud, and other debris commonly encountered during heavy-duty tasks. They will also withstand shock loads better when heavy sprung trailers are being towed empty.

4. Recreational Trailers

For activities like camping, biking, or off-roading, sealed wheel bearings are a must-have for your trailer. Unihub bearings can endure the rigors of off-road adventures, keeping your trailer's wheels in optimal condition. Whether you're exploring remote trails or setting up camp in the bush, you can Unihub to perform reliably.

5. Horse Trailers

For equestrian enthusiasts, horse trailers are indispensable. Unihub wheel bearings offer the stability and reliability required when transporting your animals. The sealed design ensures that no contaminants like mud or water enter the bearing, safeguarding your horses' during transportation.

6. Enclosed Cargo Trailers

Enclosed cargo trailers are often used for hauling heavy loads, like transporting valuable goods or equipment. Unihub sealed wheel bearings provide an added layer of security by protecting against moisture, dust, and dirt. This makes them an ideal choice for industries such as construction and trade where high GVM is standard and cargo protection is crucial.


The ability of the Unihub™ design to withstand adverse conditions and improve overall performance makes them an excellent choice for a variety of applications. They ensure less maintenance, and when combined with Trailparts’ axels they come with a 3-year warranty or 100,000km. Looking to upgrade your trailer? Check out how Unihub™ can benefit you here:

At Trailparts, we understand the importance of selecting the right trailer parts for your needs. Our extensive range of sealed wheel bearings, designed for various applications, ensures that you can enjoy peace of mind while on the road. Check out Trailparts full range of Unihub™ products here:

Whether you're towing a boat, carrying cargo, or embarking on an adventure, sealed wheel bearings are your trusted companions. Invest in the durability and reliability of Unihub™ sealed wheel bearings, and let Trailparts be your go-to source for all your trailer part needs and expertise.