ChinaAutoRegs｜GB/T 3452.1-2005 英文版/English/翻译/液压气动用 O 型橡胶密封圈基本尺寸系列及公差
Fluid Power Systems- O-Shape Rubber Rings- Part 1: Dimensions and Tolerances

1 SCOPE

This part of Standard GB/T 3452 specifies the inside diameters, cross-sections, tolerances and size identification code of O-shape rubber rings (O-rings for short) used in liquid power systems. The publication applies to general-purpose (Series G), aviation and similar applications (Series A).
The dimensions and tolerances defined in this part of Standard may apply to any synthetic rubber materials, provided suitable manufacturing processes are available.
Note: The manufacturing generally used is based on contraction percentage 70 IRHD NBR. For materials that have a different contraction percentage from NBR synthetic specified in the standard, special moulds may be required so as to maintain the nominal dimensions and tolerance limits.

2 NORMATIVE REFERENCES

The following standards contain provisions which, through reference in this text, constitute provisions of this part of GB/T 3452. For dated references, subsequent amendments to or revisions of any of these publications shall not apply to this Standard. However, parties to agreements based on this part of Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references the latest edition of the publication referred to applies.

GB/T 3452.2 O-shape rubber rings- Acceptance Inspection for Appearance Quality (GB/T 3452.2-1987, neq ISO/DP 3601-3:1987)
GB/T 17446 Fluid power system and elements: Terms (GB/T 17446-1998, idt ISO 5598:1985)

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