GB/T 15054.1-2018 PDF EnglishUS$150.00 · In stock · Download in 9 seconds
GB/T 15054.1-2018: Miniature screw threads -- Part 1: Profiles, general plan and basic dimensions Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 15054.1: Historical versions
Similar standardsGB/T 15054.1-2018: Miniature screw threads -- Part 1: Profiles, general plan and basic dimensions---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT15054.1-2018GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 21.040.30 J 04 Replacing GB/T 15054.1-1994, GB/T 15054.2-1994, GB/T 15054.3-1994 Miniature screw threads - Part 1. Profiles, general plan and basic dimension Issued on: MAY 14, 2018 Implemented on: OCTOBER 01, 2018 Issued by. State Administration for Market Regulation; Standardization Administration of China. Table of ContentsForeword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 5 4 Code ... 5 5 Basic profile ... 6 6 Designed profile ... 6 7 Diameter and pitch general plan ... 7 8 Basic dimensions ... 8 Annex A (normative) Miniature screw threads with a nominal diameter range of 1mm ~ 1.4mm ... 9ForewordGB/T 15054 “Miniature screw threads” consists of two parts. - Part 1. Profiles, general plan and basic dimension; - Part 2. Tolerances and limits of size. This Part is Part 1 of GB/T 15054. This Part was drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces GB/T 15054.1-1994 “Miniature screw threads - Profiles”, GB/T 15054.2-1994 “Miniature screw threads - General plan” and GB/T 15054.3-1994 “Miniature screw threads - Basic dimensions”. Compared with GB/T 15054.1 ~ 15054.3-1994, the main technical deviations in this Part are as follows. - deleted the arc radius Rmax requirements of external thread designed profile, root (see 3.2, 3.3 of GB/T 15054.1-1994); - moved miniature screw threads of which the nominal diameter is 1mm and above AND basic dimensions into the annex (see Annex A, Clause 3 of GB/T 15054.2-1994 and Clause 4 of GB/T 15054.3-1994); - deleted “thread code” (see Clause 4 of GB/T 15054.2-1994). This Part was proposed by and shall be under the jurisdiction of National Technical Committee on Thread of Standardization Administration of China (SAC/TC 108). The drafting organizations of this Part. Zhejiang Meike Tools Co., Ltd., China Machine Productivity Promotion Center, Jiaxing Blue Arrow Instrument Calibration Co., Ltd. Main drafters of this Part. Chen Pengyu, Li Xiaobin, Wang Wei, Wang Yong’ai. Versions of standard substituted by this Standard are. - GB/T 192-1963; - GB/T 193-1963; - GB/T 194-1963; - GB/T 15054.1-1994; - GB/T 15054.2-1994; Miniature screw threads - Part 1. Profiles, general plan and basic dimension1 ScopeThis Part of GB/T 15054 specifies the profiles, diameters of miniature screw threads as well as pitch general plan and basic dimensions. This Part is applicable to miniature screw threads of general use of which the range of nominal diameter is 0.3mm~1.4mm. NOTE. The profile and tolerance of miniature screw threads with a nominal diameter range of 1mm~1.4mm (S) differ from those of ordinary screw threads (M).2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 14791, The terms of screw threads3 Terms and definitionsFor the purposes of this document, the terms and definitions defined in GB/T 14791 apply.4 CodeThe following codes apply to this document. D Basic large diameter of internal thread (nominal diameter) D2 Basic medium diameter of internal thread D1 Basic small diameter of internal thread d Basic large diameter of external thread (nominal diameter) d2 Basic medium diameter of external thread d1 Basic small diameter of external thread (on basic profile) d3 Root small diameter of external thread (on designed profile) P Pitch ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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