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GB/T 36520.3-2019Hydraulic fluid power—Dimensions and tolerances of polyurethane seals—Part 3: Dimensions and tolerances of wiper ring (English PDF)

液压传动聚氨酯密封件尺寸系列第3部分：防尘圈的尺寸和公差

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 30, 2019

Implementation date

March 1, 2020

Scope

GB/T 36520.3-2019 is the English-translated version of 液压传动聚氨酯密封件尺寸系列第3部分：防尘圈的尺寸和公差.

GB/T 36520.3-2019 is the Chinese standard "Hydraulic fluid power—Dimensions and tolerances of polyurethane seals—Part 3: Dimensions and tolerances of wiper ring".

Its scope clause reads: This part of GB/T 36520 specifies the symbol, structure type, size and tolerance, and marking of the polyurethane dust ring in the hydraulic transmission system.

This part is applicable to the polyurethane sealing ring (referred to as the dustproof ring) installed on the hydraulic cylinder guide sleeve for dust prevention. Its clauses include terms and definitions; symbol; structure type.

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Document preview — GB/T 36520.3-2019

National Standard of the People's Republic of China

ICS: 23.100.99
Classification: J 20

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms and definitions
4 symbol
5 structure type

1 Scope

This part of GB/T 36520 specifies the symbol, structure type, size and tolerance, and marking of the polyurethane dust ring in the hydraulic transmission system.

This part is applicable to the polyurethane sealing ring (referred to as the dustproof ring) installed on the hydraulic cylinder guide sleeve for dust prevention.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 17446 Fluid Transmission System and Component Vocabulary

3 Terms and definitions

The terms and definitions defined in GB/T 17446 apply to this document.

4 symbol

The following symbols apply to this document.

D---sealing groove bottom diameter

D0---sealing groove step diameter

D1---Dust ring outer diameter

D---piston rod diameter

F---polyurethane dust seal code

H---the total height of the dust-proof ring h---Dust ring root height

L---sealing groove axial length

L1---The total axial length of the sealing groove and step

S1---Dust ring cross section lip width

S2---Dust ring cross-section root width

S3---Dust ring cross section shoulder width

5 structure type

The dust seal and its sealing structure are shown in Figure 1.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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