You can have a Duo-cone seal on your track drive or final drive motor (aka, floating face seal). If so, you undoubtedly want to know what prompts early seal failure so you can ensure yours lasts as long as possible. Fortunately, that's the subject of this Shop Talk blog post. Mechanical seals called duo-cone seals (sometimes called face seals) are used to keep oil within your final drive motor and to keep harmful contaminants outside. These seals are made of two metal faces, hence the name "floating face seals," and two flexible toric rings that squeeze the faces together to create a tight seal. Toric rings are created from