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The quality of installation of O-rings has a significant impact on both their sealing and service life. Leakage problems are often caused by poor installation. Installation process does not allow the 0-ring is scratched and the position of the installation is not correct, as well as the O-ring is twisted and so on. Before assembly, sealing groove, sealing surface must be strictly cleaned; at the same time, the O-ring assembly through the surface of the grease coating.
In order to prevent the O-ring in the installation of sharp corners and threads and other sharp edges cut or scratched, should be installed at the end of the shaft and hole end of the introduction of 15 ° ~ 30 ° angle. When the O-ring needs to pass through the external threads, special thin-walled metal guide bushings should be used to cover the external threads; if the O-ring needs to pass through the orifice, the orifice should be inverted into a corresponding beveled shape to prevent the O-ring from being scratched. The bevel angle of the bevel is generally a= 120 ~ 140°.
In order to prevent the O-ring in the installation of sharp corners and threads and other sharp edges cut or scratched, should be installed at the end of the shaft and hole end of the introduction of 15 ° ~ 30 ° angle. When the O-ring needs to pass through the external threads, special thin-walled metal guide bushings should be used to cover the external threads; if the O-ring needs to pass through the orifice, the orifice should be inverted into a corresponding beveled shape to prevent the O-ring from being scratched. The bevel angle of the bevel is generally a= 120 ~ 140°.
