Rotary movement seals
In rotary shaft equipment, Rotary Movement Shaft Seals are utilized to exclude dirt, dust, water, or other particles while retaining lubrication. Rotary movement seals were created to safeguard the bearings of spinning shafts.
The sealing effect is produced by preloading the sealing lip, which has an internal diameter that is slightly smaller than the shaft diameter. The spring of the Rotary movement seals maintains a steady level of force to the shaft, flattening the sealing edge to a predetermined width.
The rotary shaft seals are utilized between rotating and non-rotating machine components - they are made up of:
- A cylindrical outer covering of sheet steel (shell) or elastomer is used and it seals statically against the housing bore and facilitates appropriate installation of the Rotary movement seals.
- The elastomer sealing lip offers dynamic and static sealing against the shaft. The lip of the Rotary movement seals has a sealing edge that is created by pressing, cutting, or grinding and is generally forced against the counterface on the shaft by a garter spring with a set radial force.
- The most essential functional region of a radial shaft seal is the edge of the sealing lip and the shaft counterface.