STEMCO US Facilities will be closed December 8, 2023 for our Physical Inventory. Shipping will cease at 2 pm CST on December 7, 2023.


Discover® Wheel Seals

Discover® Seals feature a high-grade temperature-resistant HNBR-PTFE material and multi-labyrinth sealing features for long-life applications. Discover seals are designed for today’s increased highway speeds, and higher temperature air disc brake applications.

Discover Wheel Seal


Discover seals’ bonded rubber outer diameter offers easy installation with piloted entry for a precise installation every time. The ridged double wall steel case is the impact point for the tool head, protecting the seals’ internal geometries. The correct STEMCO installation tool never touches the mechanical portion of the seal, eliminating installation failures.

The Discover seals’ patented “SMART” anti-rotation features on the ID ensure positive positioning and locking of the seal to the spindle shoulder, while still allowing easy removal for replacement.

The premium HNBR-PTFE sealing element is well suited for today’s new equipment with air disc brakes designed to meet the reduced stopping distance requirements. The premium sealing element is protected by a four-zone labyrinth that provides unmatched contaminant exclusion and performance.

Trifecta logo
Trifecta™ Pre-Adjusted Hub Assembly Installation
Discover XR wheel seal
Trifecta™ Pre-Adjusted Hub Assembly by STEMCO

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Has Prerequisite
A man applying grit guard to a wheel end

TQM Wheel End Part 2 – Grit Guard® Installation

Requires TQM Wheel End Training Part 1

Has Prerequisite
A man installing a Guardian HP Wheel Seal

TQM Wheel End Part 2 – Guardian® HP Installation

Requires TQM Wheel End Training Part 1

Has Prerequisite
a man in front of an unassembled wheel bearing

TQM Wheel End Part 2 – Discover®/Voyager® Installation

Requires TQM Wheel End Training Part 1