GB/T 1568-2008 English PDFUS$149.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 1568-2008: Technical specifications for keys Status: Valid GB/T 1568: Historical versions
Basic dataStandard ID: GB/T 1568-2008 (GB/T1568-2008)Description (Translated English): Technical specifications for keys Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J18 Classification of International Standard: 21.120.30 Word Count Estimation: 5,582 Date of Issue: 2008-09-22 Date of Implementation: 2009-05-01 Older Standard (superseded by this standard): GB/T 1568-1997 Quoted Standard: GB/T 1184; GB/T 2828.1-2003; GB/T 11334-2005 Regulation (derived from): National Standard Approval Announcement 2008 No.16 (Total No.129) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the technical requirements of the various keys in addition to the spline outside, acceptance inspection, logo and packaging. GB/T 1568-2008: Technical specifications for keys---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.Technical specifications for keys ICS 21.120.30 J18 National Standards of People's Republic of China Replacing GB/T 1568-1997 Key technical conditions Posted 2008-09-22 2009-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard is GB/T 1568-1997 "key technical conditions" amendments. This standard and GB/T 1568-1997 compared to the main changes are as follows. --- Increase "in addition to a variety of external spline key" in scope; --- According to GB/T 1.1 modify the provisions of normative references documents; --- The 3.2 "crack" to "crack", by deleting "streaks and Use dent"; --- Deleting 3.3 "semicircular area of the end portion of the impact is not allowed to use flawed"; Increase "(keypad take a small value, large keys whichever is greater)" Content after --- 3.4; --- 3.5 increase ", the guide button", the corresponding increase in Table 1 "guide button" content. This standard by the National Standardization Technical Committee axis machines and accessories and focal points. This standard was drafted. the machine Productivity Promotion Center, Deyang Rieter Transmission Machinery Co., Ltd. The main drafters of this Standard. Chui Ming new, Chen Zhifang, Jin Ming, Deng Takami. This standard replaces the standards previously issued as follows. --- GB 1568-1979, GB/T 1568-1997. Key technical conditions1 ScopeThis standard specifies the addition of various external spline key technical requirements, acceptance inspection, marking and packaging.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 1184 shape and position tolerances without individual tolerance value (GB/T 1184-1996, eqv ISO 2768-2. 1989) GB/T 2828.1-2003 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch test sample Programme (ISO 2859-1.1999, IDT) GB/T 11334-2005 Geometrical product specifications (GPS) taper tolerance3 Technical requirements3.1 bond tensile strength of greater than or equal 590MPa. 3.2 key surface does not allow cracks, rust, scale and burrs. 3.3 A, Part C-arc flat key, there should be no deflection wedge bond. Punching process on the use of A, C-type keys, avoiding the semicircular part of the measurement Its height. 3.5 Ordinary flat key, guide key and Thin flat keys, with the key when the key length L Chou width ratio greater than 8 equal, parallel key width Chou surface in the longitudinal direction Degree should be GB/T 1184, when Chou ≤6mm by grade 7; Chou ≥8mm ~ 36mm by grade 6; Chou ≥40mm press five. 3.6 key wedge inclination angle tolerance 1.100 according to GB/T 11334-2005 AT8 level of selection, which limit deviation of ± AT8/2. 3.7 In the case of supply and demand sides agreed, key, key semicircular arc portion wedge portion and Woodruff key does not allow chamfer or round, but need Deburring.4 acceptance inspection4.1 Basic rules 4.1.1 Each key should comply with all relevant provisions of the standard, but in mass production is not always possible. According to key functions and Applications will conform to the standard and do not fully meet the requirements of the standard keys completely separate is not necessary, it is not economical. 4.1.2 supplier in the production process (including product storage acceptance inspection) have the right to use any quality control inspection procedures. But we must ensure that key Product quality in line with relevant standards. 4.1.3 demand-side considers it necessary or economically reasonable, it can guarantee the quality of the credibility of the case according to the supplier's quality inspection and previous products, the submission Acceptance of products exempt from inspection, acceptance inspection can also be customized according to the demand side of the sampling plan, but this should not be increased for inspection party is rejected Risk that should not be reduced AQL value or reduce the probability of reception. 4.2 Depending on the requirements, the demand and supply agreement, may be key to tensile strength test. Sampling plan is. acceptable quality level AQL 1.5, 8-shaped sample, the acceptance number is Ac. 4.3 Dimensional inspection Check the project and acceptable quality level key in Table 1, the sample size according to GB/T 2828.1-2003 general inspection level Ⅱ, normal inspection Check a sampling program to extract. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 1568-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 1568-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 1568-2008_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 1568-2008 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. |
