Breathing rack & pinion boot -

Breathing boots

Designed by humans, engineered by robots

Trelleborg’s innovative breathing boots are built using an innovative robotic process that exactly fits a filter inside the boot. The filters are made of welded short pipes where a membrane is fused inside. The filters allow the passage of air from the outside and keep water, dust and debris out. This precision fitting offers maximum protection and longer life for all rack and pinion steering systems (HPS and EPS).

Anti-snaking boot

Snaking is the phenomena of bending in a boot when the Rack & Pinion system is subjected to high pressure. This deformation can creates holes in a boot, either through abrasion or puncturing, which in the worst case could bring the Rack & Pinion system to suffer a breakdown and lead the car to lose steering.
Our breathing boots enable the whole system to breathe, reducing high temperatures in the steering system, and decreasing pressure. This cuts down the risk of deformation and solves any snaking issues, making of our breathing boot the ultimate anti-snaking solution.

Our breathing boots are not likely to be pinched or worn, which makes them a breakdown-proof product for your steering joint protection.
Why Trelleborg breathing boots?

  • Unique robotic production process enables an exact fit and maximize protection for both ends of the steering system.
  • These breathing boots allow air to come in, but keep water and debris out, solving the issue of snaking
  • An innovative design process using Finite Element Method ensures quick design of boots that are the perfect fit for a specific rack and pinion steering mechanism.
  • Innovative thermoplastic design reduces weight for a more compact fit, better recycling and cheaper, more cost-efficient production.

Dedication to innovation
The Trelleborg Boots Technical Centre creates boots to your exact specification. Using innovative construction techniques such as Finite Element Method combined with different technologies for producing thermoplastic boots, we can create the shape of boots you need at the specifications you want from a local centre near you.


Cost saving solution

with function integration

Perfect sealing

On housing , on shaft and on membrane

Better durability

Anti snaking design

Easy to assemble

improved design of small and large diameter

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