One of our Trelleborg CVJ boots, designed and manufactured for the global automotive market.

Circular Inboard TPE Boot

  • Inboard boot
  • Temperature range from -40° to +140°
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Circular inboard TPE boots

Trelleborg’s inboard 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.
A unique all-in-one design and thermoplastic elastomer (TPE) material make these boots more reliable, compact, easy to assemble, and recyclable during production process.

High resistance, high performance

Inboard boots are designed to withstand high temperatures. Mounted on the gearbox or engine side of the driveshaft, they operate in close proximity to the engine and exhaust system. As a result, they are exposed to temperatures of up to 165°C (329°F) and must maintain reliable performance even at high rotational speeds.
Our inboard circular TPE boots can handle the high temperatures: 165°C pick and 140°C constantly generated by being mounted close to the engine and exhaust line.
Temperature Range
-40˚ to +140˚
Highly flexible
0 to 30° angle
Plunge-ability
-20 mm to +20 mm
Compact solution
Lighter part, less grease inside
Our range of CVJ Circular boots.

Inboard boots - Excellent driveshaft protection

Inboard boots protect the driveshaft from outside dust and keep grease inside. Having better retention of grease ultimately, helps reduce friction and improve fuel consumption.
By providing dynamic sealed protection from rotation in both the gearbox and the wheel, inboard boots deliver a smooth, consistent ride and long-lasting performance, even when the vehicle is driven at top speed.

Constant Velocity Joint (CVJ) boot being tested on a high-temperature bench rig at an angle to evaluate its resistance to heat, rotation, and mechanical stress.

Protecting gearboxes

Inboard boots fit on the gearbox side of the driveshaft. They are close to the engine and the exhaust line, meaning they are designed to withstand temperatures as high as 165°C while withstanding extremely high-speed rotation.

Simply better boots

  • Trelleborg inboard boots are designed to adapt to the dynamic movements and plunge of the driveshaft, resist rotation, and retain a perfect seal, even at high speeds.
  • Our inboard boots are built to handle the high temperatures: 165°C pick and 130°C constant—generated by proximity to the engine and exhaust line.
  • Our inboard boots can be compressed and extended by up to 50% to adapt to variant wheel movements and steering-shaft changes caused by poor roads.