Axial shaft seals do not seal radially on the shaft, but are installed on the shaft or in a bearing seat and provide their sealing effect on any hardened and ground, axial mating surface. For this reason, there is no shaft wear. Hardened and ground shaft collars or ends, as well as counter-rotating washers or the unstamped faces of antifriction bearings, are especially well suited as the mating surface.
The sealing lip is of tapered design in order to keep heatup,wear and friction to a minimum. Its sturdy configuration ensures proper contact.
The packing ring and the radial spring acting against the rear of the sealing lip ensure uniform, vibration free pressure.
|Axial shaft seal with internal sealing lip, mainly for use with liquids.
The seal usually employed in a stationery manner, i.e. with a rotating shaft.
|Axial shaft seal with external sealing lip, for use with grease.
At low peripheral speeds and very good – if possible, lapped – mating
surfaces, it can also be used with liquids.
|Axial shaft seal with internal sealing lip, for use with liquids under high pressure.|