The seal head unit consists of five pre-assembled components: an integrated monotube seal, a washer, a bushing, the seal head and a dirt scraper. The integrated monotube is itself an assembly of five pre-assembled components; an oil seal, a bumper, an O-ring and a back up ring to support the main lip under high pressure. Together with the unit, SKF offers the service kit to supply all necessary components for a simplified and efficient maintenance of the SKF seal head unit. The service kit includes the integrated monotube seal, the bushing and the dirt scraper. Because it is a single unit it can be mounted saving time compared to traditional multi-component solutions and the static seals integration into the monotube seal assures no air between those five integrated components, simplifying the process to purge air from the system. The new seal head unit has been developed and tested, both in SKF laboratory and on the field by leading OE shock absorber manufacturers. The dirt scraper is a new design for the application that provides low friction and excellent dirt exclusion.
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