Luck Stone, a mining and crushed stone powerhouse in Virginia faced continuous problems with broken down Dodge TXT 12 gearboxes all over the crushed stone plant. The Dodge TXT 12 is a small shaft mount helical gear reducer that mounts directly to the driven shaft. TXT is a proven gear reducer that can be installed in the toughest applications requiring long life.. The Dodge TXT 12 is factory equipped with dual lip seals. Those lip seals would hold up for about 6 months, then the gearbox would fail. The plant needed to find a better solution, in both run time, and costs savings.
The plant was introduced to Isomag magnetic bearing seals through a gearbox repair facility and channel partner. The gearboxes are installed vertically in the plant, and the bottom shaft is flooded in an ISO 220 gear oil, while the top shaft is in a splash lube environment. Isomag bearing isolators are unique in that they are both a positive seal but also do not damage the shafts on the host equipment. The mill went from a MTBF of 6 months to more than 4 years without a hitch. Saving that hundreds of thousands in cost savings for a relatively small investment.
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.