The Rotary Shaft Seal is used for excluding dirt, dust, water or other particles, while retaining lubricant in rotary shaft equipment. It was developed as a means of protecting bearings of rotating shafts. The sealing effect is achieved by preloading the sealing lip making its internal diameter slightly smaller than
the shaft diameter. The garter spring ensures constant force to the shaft, flattening the sealing edge to a defined width. Rotary shaft seals are used between
rotating and non-rotating machine components. They are comprised of: