David Brown gearboxes are found on oil refineries, drilling platforms, chemical plants and paper mills. Most companies run them to failure, which often times is an impressive 10+ year run before a repair is needed. International Paper in New Bern, North Carolina, needed to stop their David Brown C Series gearbox from leaking in the woodyard. The weakness was the double lip seals that are installed. They wear out in about 6-8 months on continuous use. On top of that, the lip seal wears a grove into the shaft, making it necessary to either refurbish the shaft or get a new one when it's time to repair. Regular labyrinth isolators don't scar the shaft but perform poorly in forced lube systems or flooded environments.
Isomag magnetic bearing seals are the best of both worlds! Isomag magnetic bearing isolators are a positive seal that wont damage the shafts of your gearbox, and work in horizontal or vertical up or down positions for the right angle gearboxes. Isomag bearing seals also work perfectly in grease lubrication environments. So say goodbye the all the diapers left sitting around your gearbox, and say hello to meeting your planned life cycle for your gearbox with Isomag bearing isolators.
A brochure for Isomag bearing isolators for gearboxes can be found here. Also as a reminder, Isomag bearing isolators can be custom made to fit your machine. Contact our customer service team and we will help you find the ideal solution for your needs.
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