e-Barrier Wheel Seals

  • Easy to Fit – Any tool will work, even your hands.
  • Impossible to Damage during Installation.
  • Standard & Premium Versions available.
  • Unrivalled protection against contaminants.
  • Eco-friendly – low friction from the outset.
  • Matches any Warranty.

Item Description


Today’s wheel seals can be broadly categorized by the rubber used for the sealing lip. The material properties are keys to achieving maximum life of the seal. With these in mind, CHO have spent thousands of hours developing testing the materials. The two main option are either a Nitrile compound (NBR) or a Hydrogenated Nitrile (HNBR). To the layman this may not seem very significant, but this has a dramatic effect on the expected seal life as HNBR has some key benefits over NBR, these being:
1. Higher temperature capability, therefore the HNBR lip ages much slower.
2. Greater wear resistance, therefore increasing lip life
3. Greater compatibility to a wider range of lubricating oils, including synthetics.

We are so confident in our materials that we offer the same Warranty as the comparative competitors seals as listed in the table below.
Due to the varying conditions of different applications, and to offer the right balance of cost and required performance, the e-Barrier Seal is offered as two material options, the Standard and the Premium as shown in the table below, with the major competitors equivalent listed alongside for comparison.

e-Barrier StandardClassic37 Series
e-Barrier PremiumPlus XL

Three Unique Features, 1 Superior Seal

  1. Easy-Fit Tough Design
    When designing the e-Barrier seal we wanted to eradicate the largest reason for premature seal failures— Installation damage. We have done this by designing the stiffest profile and using the thickest steel ever used for a seal, right at the front face. The rubber OD beads allow for the minimum fitting force required, and the low friction barrier ensures maximum transmission of the fitting forces to the Seals OD.
  2. Low Friction Bumper
    The Low Friction bumper performs 2 major functions which other seals simply have not got. Firstly, the bumper transmits the fitting force from the front of the seal to the Seal OD in a far more efficient manner than any other seal. Most other seals have a rubber bumper, which acts like a brake, thus increasing the required torque, creating excessive temperatures, and ultimately more fuel to turn the seal. This can last a few hundred hours until the rubber eventually goes hard. Secondly, the bumper acts as the first contacting defense against dirt ingress, as part of the multi-zone labyrinth protection system.
  3. Multi-zone Labyrinth
    Using the latest labyrinth technology, the e-Barrier seal provides the best protection and the lowest friction on the market. The combination of low profile section right angle corners, low friction barrier, two rubber wipers and a specifically formulated water proof grease to both lubricate and keep water out, ensures this is the best seal at keeping dirt , grit water and ice out on the market.

Size cross reference

Standard Wheel SealsHigh-Performance Seals
ApplicationStandardClassic37 SeriesVoyagerPremiumPlus XLDiscoverOutrunner

Supplier Info


CHU HUNG OIL SEALS IND CO., LTD was found in 1988 located in Nantou city, Taiwan. CHO mainly focused on being a professional manufacturer and tooling development for 15 years since it was established. We’re now devoting to the design and development of all types of sealing products for different applications. In addition, customized services are also provided based on customers’ requirement. As one of the leading brands of sealing technology, our products are being widely sold to countries all over the world in the name of CHO.

We were mainly producing seals for Aftermarket from 1988 to 2007, however, we started cooperating with OEM customers manufacturing seals for well-known automotive brands in the world. In order to meet customers’ requirement and increase their loyalty and confidence in us, we have obtained the certifications of IATF 16949 and ISO 14001.

CHO relocated to the new facility with 13,000 square meters for more space at Yung-Hsing Road in Nantou in 2007. The continuous innovation and improvement for management, production and quality is highly emphasized. Therefore, we’ve been investing more precise production, inspection and automotive equipments to increase our competitiveness in sealing technology. We also established a new plant with 13,000 square meters in 2014 providing 3 floors for OEM production lines and extending the professional rubber compound lab. Increasing our capability is the main mission of new plant expecting to bring the maximum benefit of production.

We continuously accumulate our experience and knowledge from the communication and all projects to fulfill customers’ demands and increase the quality of service.

See also different:Seals
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