Circular Outboard TPE Boot -

Circular outboard TPE boots

Trelleborg’s outboard circular TPE boot offers a reliable, cost-effective, and environmentally friendly way to protect vehicles and enhance performance by sealing lubricants in and keeping dirt and other contaminants out.

Effective dirt protection

Trelleborg’s outboard circular TPE boot offers a reliable, cost-effective, and environmentally friendly way to protect vehicles and enhance performance by sealing lubricants in and keeping dirt and other contaminants out.

CVJ circular boots undergo bench testing to validate their performance and durability.

Withstanding high angles

Circular TPE boots are designed to substantially reduce the volume of grease, while offering excellent abrasive resistance. Fitted on the wheel side of the driveshaft, they are highly flexible, with-standing dynamic movements and acute angles of up to 50 degrees, as well as the rotation created by tight turns and high speeds on the road. The boots are built to withstand temperatures from -40°C to +140°C, and give excellent abrasive and impact protection from mud, stones, grease and more.

Raw materials required for the production of bellows.

Built to your exact specifications

Circular outboard TPE boots are crafted from a unique thermoplastic elastomer that is lightweight, compact, and recyclable throughout the production process. By leveraging FEA calculations and advanced design methods, we engineer ultra-compact bellows that fit seamlessly into tight spaces, reducing weight, cost, and grease requirements.
Our circular outboard TPE boots are designed to deliver a quiet, comfortable ride. Their convolute shape is engineered to resist contact pressure at acute angles, a common cause of squeaking noise. For optimal noise reduction, we recommend pairing our boots with a specially waxed material.

Temperature range

Between -40° and 140°C

Highly Flexible

0 to 50° angle

Compact Solution

Lighter part, less grease inside.

Silent solution

No squeak noise between convolutes.

Outboard boots - Ultimate joint protection

Trelleborg outboard boots provide protection against contaminants while keeping grease inside, reducing friction and improving fuel consumption. Because CV joints need to transmit torque from the gearbox to the wheel, outboard boots are built to undergo significant stress due to high-steering angles, rotation, and exposure to the elements.

Two operators performing a four-eye quality control inspection on a CVJ boot.

A perfect seal

The exceptional fit and tear-resistance of Trelleborg outboard boots creates a perfect seal that keeps mud, gravel, and other road contaminants from entering the area and causing wear and damage.
Trelleborg outboard boots are highly flexible, so that they can withstand the dynamic movements, acute angles of up to 50 degrees, and rotation created by tight turns and high speeds on the road.

High angle outboard boots

Modern car designs involve many challenges for boots. As wheel bases become larger and drive chain layouts more diversified, it increases the need for a smaller turning radius, and steeper turning angle on wheels.
Follow the link below to read the full case on how we have solved this.

Circular Outboard TPE Boot