Trailer Bearing Caps: Why They Matter and How to Choose the Right One

Trailer bearing caps, also known as hubcaps, are essential components that protect the wheel bearings and brakes from dirt, water, and other contaminants. They also help to keep the bearings lubricated and prevent them from overheating.

Benefits of Trailer Bearing Caps:

Increased Bearing Life: Trailer bearing caps help to keep the bearings clean and free of contaminants, which can extend their lifespan by up to 50%.

Improved Braking: Bearing caps help to keep the brakes clean and dry, which improves braking performance and safety.

Reduced Maintenance: By preventing dirt and water from entering the bearings, trailer bearing caps can help to reduce maintenance costs.

How to Choose the Right Trailer Bearing Cap:

• Material: Bearing caps are typically made of steel, aluminum, or plastic. Steel caps are the most durable, but they are also the heaviest. Aluminum caps are lighter and more corrosion-resistant, but they are less durable than steel caps. Plastic caps are the lightest and least expensive, but they are also the least durable.
• Size: Bearing caps come in a variety of sizes, so it is important to choose the correct size for your trailer. The cap should fit snugly over the bearing, but it should not be so tight that it binds the bearing.
• Type: There are two main types of trailer bearing caps: grease caps and oil caps. Grease caps are filled with grease, which lubricates the bearings. Oil caps are filled with oil, which provides better lubrication than grease.

Get Started with Trailer Bearing Caps:

1. Inspect your trailer bearings: Before you install new bearing caps, it is important to inspect the bearings for wear and damage. If the bearings are damaged, they should be replaced before installing new caps.
2. Clean the bearing area: Once you have inspected the bearings, clean the bearing area with a degreaser. This will help to remove any dirt or debris that could prevent the bearing cap from fitting properly.
3. Apply grease or oil: If you are using grease caps, apply a generous amount of grease to the bearings. If you are using oil caps, fill the caps with oil.
4. Install the bearing caps: Place the bearing caps over the bearings and tighten them until they are snug. Do not overtighten the caps, as this could damage the bearings.

Advanced Features:

• Sealed bearings: Sealed bearings have a rubber seal that prevents dirt and water from entering the bearing. This type of bearing is more expensive than standard bearings, but it can last up to 10 times longer.
• Bearing buddies: Bearing buddies are devices that automatically lubricate the bearings. This can help to extend the lifespan of the bearings and reduce maintenance costs.