A163 U-Ring Rod Nutrings, that have shorter inner sealing
lips, are produced for only rod applications.
They leave lower oil film thickness due to their second
dynamic sealing lip. At the same time, they prevent the
entry of unfavourable particles into the cylinder. POM
back-up rings offer high resistance to extrusion.
Thanks to endurance grade special PU material, A163
U-Ring Rod Nutrings can be safely used in heavy duty