Shaft seals

Shaft seal, also known as a oil seal, rotary seal or simmering seal, is a sealing element used in mechanical devices to prevent the leakage of liquid or gas between two surfaces. Its main purpose is to keep lubricant in and contaminants out, extending the life of bearings and other moving parts. Bearings are often made of materials that are resistant to wear and chemicals. Gaskets can come in a variety of shapes and sizes and are used in automotive, machinery, agricultural machinery and many other industries. Seals are crucial to the proper functioning of engines, transmissions and hydraulic systems. Proper selection and installation of a bearing ensures smooth operation of equipment and minimizes the risk of failures. Investing in quality bearings therefore pays off in terms of maintenance and operational reliability.

Sealing types:

• G/WA - single-edged radial rotary shaft seal ring without dust cover

• GP/WAS - single-edged radial rotary shaft seal ring with dust cap

Shaft seal materials:

NBR - Nitrile Butadiene Rubber (NBR), offers high tensile strength and low swelling in water. The temperature usage range is from -40 °C to 100 °C depending on the type of fluid used. Specific temperature limits for constant temperature loads are 70 °C for HSB emulsions (water-oil) and HSC aqueous solutions, 80 °C for gear and hypoid oils, 90 °C for pressure fluids, heating oils and greases and a maximum temperature of 100 °C for engine and ATF oils. NBR material has limited resistance to ozone, organic solvents and aromatic liquids.