The hardened and contamination-resistant metal cage of the axial oil seals has the advantage that the axial seals are ideally suited for use in highly contaminated rotating shafts such as motors, gearboxes, reduction gearboxes, electric saws, lathes, etc., where the life of the radial seals and the bearings is reduced. The metal main frame acts as an oil polishing ring and provides the seal with excellent protection against dust, debris and water. In addition, it can also supply high speeds without additional clamping of metal devices. Liyang has fully developed the molds for manufacturing the RE/RE1 series of shaft seal housings.