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The oil seal under high efficiency china oil seal design is an important component in a wide range of industrial applications. In order to promote the rapid development of the oil seal industry, the state has formulated a series of relevant standards. my country’s oil seal standards generally apply to the national standard GB9877.1/2/3-88 series and GB13871-1992 oil seal standard. HG4-692-67 is an oil seal standard proposed by the Ministry of Chemical Industry of my country.
“GB/T9877.1-88” Applicable range: ——The basic structure, skeleton, and spring size series of inner bone-shaped rotating shaft lip-shaped seals specifies this standard. This standard is applicable to the rotating shaft ending in the device. Under the condition that the pressure difference does not exceed 0.03MPa, the internal rotating shaft lip-shaped sealing ring of the internal cockpiece rotation shaft of the fluid and grease is sealing; “GB/T 9877.2-1988” It is the second part of the structure of the rotating shaft lip -shaped sealing ring: the relevant provisions of the exposed skeleton rotation shaft lip -shaped sealing ring.
The scope of application of “GB13871-1992”: —— This standard specifies the diameter of the axis diameter from 6 to 400mm and the corresponding seal cavity (hereinafter referred to as the cavity) Circle) Basic size and tolerance. In order to ensure the interchangeability of the sealing ring produced by different manufacturers, this standard also specifies the size and tolerance of the shaft and installation holes. This standard is suitable for a sealing ring with a stress or less than 0.05MPa, which is not suitable for higher work pressure. In order to enable the sealing ring provided by the production plant to meet the design and use requirements, the Appendix A of this standard recommends the reporting format of the sealing ring for the signing of the agreement, and
Recently, my country has re-developed national recommendation standards for oil seal products that adapt to international development “GB/T13871-2007” and “GB/T13871.4-2007”. The new national standard has been officially implemented on July 1, 2008. This standard is compiled by the National Levading Products Branch of Rubber and Rubber Products Standardization Technical Committee. The new standard meets the requirements of the same technical standards, improving the technical requirements of sealing products, and providing a good technical guarantee for better solving the “three leak problems” that has long -term trouble in Chinese enterprises. The implementation of this new standard will gradually promote the new development of the oil seal product industry.
In addition: international oil seal standards are: ISO6194 (ISO standard), DIN3760 (German Industrial Standard), JIS2402 (Japan Industrial Standard).
