The Spindle Seal Kit eliminates excessive grease leakage caused by rough sealing surfaces that will quickly destroy any seal. With the Spindle Seal kit, a high-quality neoprene seals ride on a smooth stainless steel surface constantly greased by the action of the Bearing Buddy, prolonging the life of the seals. For use with Inner Bearing Cone: L44643. Seal Diameter: 1.98". Bearing Buddy model no. 1980.