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GB/T 15242.4-2021 English PDF

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Q: Should I purchase the latest version GB/T 15242.4-2021?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15242.4-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$409.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 15242.4-2021: Dimensions series of rod and piston dynamic seals for hydraulic cylinders - Part 4: Dimensions and tolerances of bearing rings groove
Status: Valid

GB/T 15242.4: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15242.4-2021	409	Add to Cart	4 days	Dimensions series of rod and piston dynamic seals for hydraulic cylinders - Part 4: Dimensions and tolerances of bearing rings groove	Valid
GB/T 15242.4-1994	199	Add to Cart	2 days	Hydraulic fluid power. Cylinder rod and piston seals for reciprocating applications of bearing rings. Dimansions and tolerances of housings	Obsolete

Similar standards

GB/T 14034.1 GB/T 14041.4 GB/T 13871.5 GB/T 22107 GB/T 15242.3 GB/T 15242.2

Basic data

Standard ID: GB/T 15242.4-2021 (GB/T15242.4-2021)
Description (Translated English): Dimensions series of rod and piston dynamic seals for hydraulic cylinders - Part 4: Dimensions and tolerances of bearing rings groove
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J20
Word Count Estimation: 22,231
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 15242.4-2021: Dimensions series of rod and piston dynamic seals for hydraulic cylinders - Part 4: Dimensions and tolerances of bearing rings groove

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Dimensions series of rod and piston dynamic seals for hydraulic cylinders-Part 4.Dimensions and tolerances of bearing rings groove ICS 23.100.60 CCSJ20 National Standards of People's Republic of China Replace GB/T 15242.4-1994 Hydraulic cylinder piston and piston rod dynamic sealing device size series Part 4.Support ring installation groove dimension series and tolerances (ISO 10766.2014,Hydraulicfluidpower-Cylinders-Housingdimensionsfor Released on 2021-05-21 2021-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is the fourth part of GB/T 15242 "Dimensions Series of Hydraulic Cylinder Piston and Piston Rod Dynamic Seal Device", GB/T 15242 has The following parts have been released. ---Part 1.Coaxial seal size series and tolerances; ---Part 2.Support ring size series and tolerances; ---Part 3.Coaxial seal groove dimension series and tolerances; ---Part 4.Support ring installation groove dimension series and tolerances. This document replaces GB/T 15242.4-1994 "hydraulic cylinder piston and piston rod dynamic seal device supporting ring installation groove size series and Tolerance, compared with GB/T 15242.4-1994, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) Modified normative reference documents (see Chapter 2, Chapter 2 of the.1994 edition); b) Added terms and definitions (see Chapter 3); c) The symbol S has been deleted, and some symbols have been modified and added (see Chapter 4, Chapter 3 of the.1994 edition); d) The serial number has been added (see Chapter 5); e) Modified the schematic diagram of the groove type, and added the schematic diagram of the support ring in the figure (see Figure 1 and Figure 2, and Figure 1 and Figure 2 of the.1994 edition) figure 2); f) Modified and supplemented part of the dimension series of the supporting ring installation groove, and added the specification code in the dimension series and tolerance table (see Table 1 and Table 2,.1994 edition of Table 1 and Table 2); g) The requirements for the installation clearance of the piston and piston rod have been increased (see Chapter 7). This document refers to ISO 10766.2014 ``Rectangular Support Ring Groove Ruler for Pistons and Piston Rods of Hydraulic Transmission Hydraulic Cylinders "Inch" was drafted, and the degree of consistency is non-equivalent. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Hydraulic and Pneumatic Standardization Technical Committee (SAC/TC3). Drafting organizations of this document. Guangzhou Academy of Mechanical Sciences Co., Ltd., Yantai Future Automatic Equipment Co., Ltd., Hebei Huami Rubber Science and Technology Co., Ltd., Northwest Rubber and Plastics Research and Design Institute Co., Ltd., Suzhou Meifuli New Material Technology Co., Ltd. The main drafters of this document. Huang Xuemei, Cao Changzhen, Li Zangxu, Lu Xinchun, Tang Yingda, Guo Xuejing, Zhang Heguang, Pan Yuxun. This document was first published in.1994, and this is the first revision.

Introduction

The coaxial seal and its installation groove, the support ring and its installation groove are part of the piston or piston rod dynamic sealing device, and its size is Compatible with each other, GB/T 15242 "hydraulic cylinder piston and piston rod dynamic seal device size series" stipulates the dimensions and specifications of these components. Poor, consists of four parts. ---Part 1.Coaxial seal size series and tolerances. Specify coaxial seals and related dimensions for pistons or piston rods And tolerance. ---Part 2.Support ring size series and tolerances. Specify the supporting ring for the piston or piston rod and its related dimensions and tolerances. ---Part 3.Coaxial seal groove dimension series and tolerances. Specifies the installation groove of the piston or the coaxial seal on the piston Relevant dimensions and tolerances. ---Part 4.Support ring installation groove dimension series and tolerances. Specify the relevant dimensions and dimensions of the support ring on the piston or piston rod tolerance. Hydraulic cylinder piston and piston rod dynamic sealing device size series Part 4.Support ring installation groove dimension series and tolerances

1 Scope

This document specifies the symbol, serial number, type, size series and the installation groove of the supporting ring of the hydraulic cylinder piston and piston rod dynamic seal device. Tolerance, clearance. This document is applicable to the mounting grooves of the support ring for the piston and piston rod of the reciprocating hydraulic cylinder.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 15242.2 Hydraulic cylinder piston and piston rod dynamic sealing device dimension series Part 2.Support ring dimension series and tolerances GB/T 17446 Vocabulary of fluid transmission systems and components

3 Terms and definitions

The terms and definitions defined in GB/T 15242.2 and GB/T 17446 apply to this document.

4 Symbols and abbreviations

The following symbols and abbreviations apply to this document. b ---The width of the groove for the installation of the support ring; D ---The bottom diameter of the bore of the hydraulic cylinder or the groove of the piston rod support ring; d --- the diameter of the piston rod or the bottom diameter of the groove of the piston support ring; F --- Piston or piston ring installation clearance; R,r---round corner radius; T --- the depth of the groove for the installation of the support ring; GD ---support ring for piston rod; SD ---Support ring for piston.

5 serial number

See GB/T 15242.2 for the serial number. 6 Groove type, size series and tolerances 6.1 The groove type, size series and tolerances of the supporting ring for the piston 6.1.1 The schematic diagram of the support ring for the piston and the groove pattern are shown in Figure 1. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 15242.4-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 15242.4-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 15242.4-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 15242.4-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 15242.4-2021?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15242.4-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.