Advantages of Leading Edge Groove (LEG) lubrication technology
Kingsbury's equalized LEG thrust bearings are fitted with leveling plates to ensure optimum load distribution and trouble free operation, while taking advantage of other features such as offset pivots to achieve the best possible performance. Other key features make the LEG bearing superior to other directed lubrication bearings in use today: Oil feed tubes connecting the base rings to the shoes ensures that cool oil does not bypass the film. The LEG feature is an integral part of the shoes, delivering oil immediately to the film. Large oil flow passages eliminate the possibility of clogging that can occur in nozzles. No oil seal rings are required, lowering power loss and simplifying design and installation. The LEG does not require special, higher pressure lube systems to deliver oil to the film.
For the complete paper with associated illustrations,
