Trelleborg antisnaking

Anti-snaking rack & pinion boots

Patented design

Our anti-snaking boots use a patented design to withstand very high pressures, especially those experienced in sealed systems such as electric steering. 

Two employees discuss work at a computer on the shop floor of the Salisbury facility.

Understanding the snaking phenomenon

Snaking is the phenomena of bending in a boot when the Rack & Pinion system is subjected to high pressure. This deformation creates holes in a boot in two ways: abrasion, caused by contact with surrounding systems; and puncture, when the boot is pinched between two hard elements. In the worst case the Rack & Pinion could suffer a breakdown and the car would lose steering.
Trelleborg Boots help solve issues that are not manageable by the Rack & Pinion system itself.
An employee at our Trelleborg Boots facility in China prepares a steering system with our CVJ Boots for testing in the bench test lab.

Patented anti-snaking solutions

Our Technical Center develops anti-snaking design solutions to prevent breakdown. Using design studies and Finite Element Analysis, our boots use a patented design to withstand very high pressures, especially those experienced on sealed systems such as electric steering.
Another patented solution from Trelleborg Boots, is a breathing system which allows the whole system to breathe through the boot, without letting in water or other elements. Venting can be directly implemented on the gear, or on the boot, removing the issue of snaking.
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A rack and pinion system positioned in the test bench area, ready for performance testing and validation.
Did you know ?
Worst case, a defective rack & pinion boot can cause the car to lose steering.