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GB/T 1139-2017: Morse and metric taper reamers
Status: Valid GB/T 1139: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 1139-2017 | English | 139 |
Add to Cart
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3 days [Need to translate]
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Morse and metric taper reamers
| Valid |
GB/T 1139-2017
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| GB/T 1139-2004 | English | 279 |
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3 days [Need to translate]
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Morse and metric taper reamers
| Obsolete |
GB/T 1139-2004
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| GB/T 1139-1984 | English | 199 |
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2 days [Need to translate]
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Morse and metric taper reamers with parallel shanks
| Obsolete |
GB/T 1139-1984
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PDF similar to GB/T 1139-2017
Basic data | Standard ID | GB/T 1139-2017 (GB/T1139-2017) | | Description (Translated English) | Morse and metric taper reamers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J41 | | Classification of International Standard | 25.100.30 | | Word Count Estimation | 7,746 | | Date of Issue | 2017-02-28 | | Date of Implementation | 2017-09-01 | | Older Standard (superseded by this standard) | GB/T 1139-2004 | | Quoted Standard | GB/T 1443; GB/T 4267; GB/T 4250 | | Adopted Standard | ISO 2250-2009, MOD | | Regulation (derived from) | National Standard Announcement No. 4 of 2017 | | 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 basic requirements for the type and size, marking and technical conditions of the Morse cones and the metric cone reamers with the shank type and the shank and the Mohs taper. This standard applies to the following types of reamers: - Straight shank and Morse taper shank 4 and 6m taper reamers; - Straight shank and Morse taper shank No. 0 to No. 6 Morse conical reamers. Unless otherwise stated, the reamers are right cut. | GB/T 1139-2017: Morse and metric taper reamers---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.
Morse and metric taper reamers
ICS 25.100.30
J41
National Standards of People's Republic of China
Replacing GB/T 1139-2004
Mohs cone and metric cone reamer
(ISO 2250..2009, Finishingreamers forMorseandmetric
tapers, withcylindricalshanksandMorsetapershanks, MOD)
2017-02-28 released
2017-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 1139-2004 "Mohs cone and metric cone reamer". This standard compared with GB/T 1139-2004, except
Editorial changes, the main technical changes are as follows.
--- modified the scope of Chapter 1;
--- canceled in Table 1, Table 2 in the inch size;
--- Table 1 increases the basic size of the square head;
--- canceled the "Chapter 3 handle", in Table 1, Table 2 to increase the table note;
- Increased chip breaker size and number of teeth are added in Table A.1.
This standard adopts the re-drafting method to use ISO 2250..2009 "straight shank and Morse taper shank Morse cones and metric tapered reamers".
The technical differences between this and ISO 2250..2009 and the reasons are as follows.
- normative reference documents, ISO 237 replaced with GB/T 4267; ISO 296 replaced with GB/T 1443; increased
GB/T 4250;
- according to the domestic situation, an increase of marking examples and technical conditions;
- according to the domestic situation, the addition of information on Appendix A;
- taking into account the domestic habits, Figure 1, Figure 2 and Table 1, Table 2, l1 to L, l2 to l, l3 to l1, d1 to d, d2
Changed to d1;
--- According to the domestic situation, Table 1 increased the basic size of the square head;
--- According to the domestic situation, Table 2 increased the Morse taper handle number.
This standard is proposed by the China Machinery Industry Federation.
This standard is under the jurisdiction of the National Tool Standardization Technical Committee (SAC/TC91).
The main drafting unit of this standard. Chengdu into the amount of Tools Group Co., Ltd., Chengdu Tools Research Institute Co., Ltd., Henan a tool limited
the company.
The main drafters of this standard. Huang Huaxin, Gao Feng, Shen Shichang, Zhao Jianmin.
This standard replaced the previous version of the standard release.
--- GB/T 1139-1973, GB/T 1139-1984, GB/T 1139-2004;
--- GB/T 1140-1973, GB/T 1140-1984.
Mohs cone and metric cone reamer
1 Scope
This standard specifies the type and dimensions of the Morse cones and the metric cone reamers of the shank type with the straight shank and the Morse taper shank, the mark and the technique
Conditions and other basic requirements.
This standard applies to the following types of reamers.
--- straight shank and Morse taper shank 4 and 6 m cone reamer;
--- Straight handle and Morse taper handle 0 to 6 Morse conical reamer.
Unless otherwise stated, the reamers are right cut.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For dated references, the latest edition (including all amendments) applies to this document.
GB/T 1443 Self-clamping cones for machine tools and tool handles (GB/T 1443-2016, ISO 296..1991, MOD)
GB/T 4267 Straight handle rotary tool Shank diameter and size of the drive head (GB/T 4267-2004, ISO 237. 1975,
IDT)
GB/T 4250 cone reamer technical conditions
3 type and size
3.1 Straight handle Morse cones and metric tapered reamers
Straight handle Morse cones and metric tapered reamers are shown in Table 1 according to the size of Figure 1. Small hinge with a small end diameter less than or equal to 6mm
Knife can be made anti-tip; handle square head size deviation according to GB/T 4267 requirements.
Figure 1 Straight handle Morse cones and metric cone reamers
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