Heavy manufacturing industries such as metal, automotive, wind generation and energy, construction, mining, oil and gas offer a difficult working atmosphere for radial shaft seals. The seals need to reliably retain lubricants and greases in order to prevent harsh contaminants from entering the system because the machines operate in a varying range of speeds, temperature, pressure and environmental conditions. O ring is a sealing device which blocks the pathway through which air or fluid may escape and affects the working.