GOST 25557-2016 Tool cones. Main Dimensions

Preface

The goals, basic principles and basic procedure for carrying out interstate standardization work are established in GOST 1.0—2015 “Interstate standardization system. Basic provisions" and GOST 1.2-2015 "Interstate standardization system. The standards of the Mvzhgosudar* are standardized. rules and recommendations for interstate standardization. Rules for development and acceptance. updates and cancellations"

Standard information

1 PREPARED by Open Joint Stock Company "VNIIINSTRUMENT" (JSC "VNII INSTRUMENT") based on its own translation into Russian of the English version of the standard specified in paragraph 5

2 INTRODUCED by the Interstate Technical Committee for Standardization MTK 95 “Tool* ment”

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (protocol dated November 22, 2021 No. 93-P)

The following voted for adoption:

4 By Order of the Federal Agency for Technical Regulation and Metrology dated March 20, 2021 No. 160-st, the interstate standard GOST 25557-2016 (ISO 296:1991) was put into effect as a national standard of the Russian Federation on January 1, 2018.

5 This standard is modified from the international standard ISO 296:1991 “Machines. Self-tightening tapers for tool shanks” (“Machine tools – Selfholding tapers for tool shanks”, MOD).

At the same time, the needs of the national economies of the countries indicated above and the features of interstate standardization are taken into account in additional sections, paragraphs that are highlighted by enclosing frames of thin lines, and information explaining the reasons for the inclusion of these provisions is given in the additional Appendix YES.

The international standard was developed by the Technical Committee for Standardization ISO/TC 39 “Machines” of the International Organization for Standardization (ISO).

The name of this standard has been changed relative to the name of the specified international standard to bring it into compliance with GOST 1.5 (subsection 3.6).

A comparison of the structure of this standard with the structure of the international standard used in it is given in the additional appendix DB.

Information on the compliance of reference interstate standards with international standards* there. used as references in the applied international standard are given in the additional appendix DV

II

GOST 25557—2016

6 INSTEAD GOST 25557-2006 {ISO 296:1991)

Information about changes to this standard is published in the annual (as of January 1 of the current year) information index “National Standards”, and the text of changes and amendments is published in the monthly information index “National Standards”. In case of revision (replacement) or cancellation of this standard, the corresponding notice will be published in the monthly information index “National Standards”. Relevant information, notices and texts are also posted on the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet ()

© Standardinform, 2017

8 of the Russian Federation, this standard cannot be reproduced in whole or in part. replicated and distributed as an official publication without permission from the Federal Agency for Technical Regulation and Metrology

GOST 25557—2016

Shortened Morse tapers

In some situations, the dimensions of the Morse cone are too large and in this case you should use shortened versions.

The names below indicate that the cone has been shortened:

• B7 - up to 14 mm;
• B10 - up to 18 mm;
• B12 - up to 22 mm;
• B16 - up to 24 mm;
• B18 - up to 32 mm;
• B22 - up to 45 mm;
• B24 - up to 55 mm;
• B32 - up to 57 mm;
• B45 - up to 71 mm;

The number in the name informs about the size of the diameter of the new part of the cone. Detailed data can be taken from the relevant GOST.

If you find an error, please select a piece of text and press Ctrl+Enter.

Tool cone - a conical shank of a tool or a socket for it in the spindle of a machine tool or device; serves for connecting drills, reamers (See Reamer), countersinks and other tools, as well as mandrels and centers with spindles of machine tools and instruments.... ... Great Soviet Encyclopedia

Morse taper - Tool cone, a conical shank of a tool (drill, countersink, milling cutter, reamer) and a conical hole of the appropriate size (socket) in the spindle or tailstock of the machine. Designed for quick tool change with high... ... Wikipedia

Cone (meanings) - Cone: In mathematics, a cone is a geometric figure. Cone over topological space. Cone (Category Theory). In the Cone technique, it is a tool method for coupling a tool and a spindle in machine tools. Cone device unit... ... Wikipedia

CONE - (1) in elementary geometry, a geometric body bounded by a surface formed by the movement of a straight line (generating the cone) through a fixed point (top of the cone) along a guide (base of the cone). The resulting surface enclosed between ... Big Polytechnic Encyclopedia

CONE - (Latin conus, from Greek konos) a conical surface is a set of straight lines (generators) of space connecting all points of a certain line (guide) with a given point (vertex) of space. The simplest K. is round, or straight circular, directing to ... Big Encyclopedic Polytechnic Dictionary

List of ISO standards - This is a non-exhaustive list of ISO standards. More detailed information about some ISO/IEC JTC1 standards can be found in the public domain here Contents 1 ISO 1 ISO 999 2 ISO 1000 ISO 9999 3 ISO 10000 ISO ... Wikipedia

Chuck - This article should be Wikified. Please format it according to the article formatting rules. A clamping chuck (lathe chuck, drill chuck, collet chuck) is a special device for fastening parts or tools to ... Wikipedia

Center - I (Latin centrum, from Greek kéntron middle point, focus, center) 1) middle, middle part of something (C. city, C. field). 2) Populated area (for example, regional center). 3) Place of concentration of any activity, organs... ... Great Soviet Encyclopedia

MT (values) - MT, Mt, mT, mt or Mt. may refer to: Meitnerium, symbol "Mt" 109th chemical element MT ISO 3166 code for Malta .mt internet top level domain for Malta mt ISO 639 code for the Maltese language 1 MT code for the state of Mato Grosso... ... Wikipedia

Mathematics - The word mathematics comes from the Greek μάθημα (science, teaching), which in turn originates, together with the word μάθησις, which has the same meaning, from the verb μανθάνω, the original meaning of which, I learn through reflection, established... ... Encyclopedic Dictionary of F.A. Brockhaus and I.A. Ephron

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INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (IGU)

INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC)

ISO 296:1991 Machine tools – Self-holding tapers for tool shanks (MOD)

The goals, basic principles and basic procedure for carrying out work on interstate standardization are established by GOST 1.0-92 “Interstate standardization system. Basic provisions" and GOST 1.2-97 "Interstate standardization system. Interstate standards, rules and recommendations for interstate standardization. Procedure for development, adoption, application, updating and cancellation"

Standard information

1 PREPARED by the All-Russian Research Institute of Standardization and Certification in Mechanical Engineering (FSUE VNIINMASH) and the Experimental Research Institute of Metal-Cutting Machine Tools (JSC ENIMS) based on its own authentic translation of the standard specified in paragraph 4

2 INTRODUCED by the Federal Agency for Technical Regulation and Metrology

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Protocol No. 29 of June 24, 2006)

The following voted for adoption:

Short name of the country according to MK (ISO 3166) 004-97

Country code according to MK (ISO 3166) 004-97

Abbreviated name of the national standardization body

State Standard of the Republic of Belarus

Gosstandart of the Republic of Kazakhstan

Federal Agency for Technical Regulation and Metrology

The name of this standard has been changed relative to the name of the specified international standard to bring it into compliance with GOST 1.5 (subsection 3.6). At the same time, additional provisions, as well as phrases and individual words included in the text of the standard to take into account the needs of the national economy of the above states and the features of interstate standardization, are highlighted in italics.

A comparison of the structure of this standard with that of this International Standard is given in Supplementary Appendix B

5 By Order of the Federal Agency for Technical Regulation and Metrology dated July 12, 2007 No. 171-st, the interstate standard GOST 25557-2006 (ISO 296:1991) was put into effect as a national standard of the Russian Federation on January 1, 2008.

Information
on the
entry into force
(
termination )
of this standard is published in “National Standards”
index .

Information
about changes to this standard is published in “National Standards”
index ,
and the text of the change
is published in
“National Standards”
information index .
In case of revision or cancellation of this standard the relevant information will be published in the information index “National Standards”
GOST 25557-2006 (ISO 296:1991)

Machine tools tapers. Basic dimensions

Date of introduction – 2008-01-01

Content

1 Scope……………………………………………………………………………………………………………………1

2 Normative references……………………………………………………………………………………………………………………………………1

3 Designations of cones…………………………………………………………………………………………………………………..1

4 Dimensions…………………………………………………………………………………………………………………………………………… ………2

Appendix YES (informative) Information on the reasons for inclusion in the standard

additional provisions compared to the applied

international standard………………………………………………………………………………..7

Appendix DB (informative) Comparison of the structure of this standard with the structure

international standard applied in it……………………………………………………….8

Appendix D8 (informative) Information on the compliance of reference interstate standards with international standards used as reference in the applied international standard…………………………………………9

IV

GOST 25557—2016 (ISO 296:1991)

INTERSTATE STANDARD

TOOL CONES Main dimensions Machine tools tapers. Basic dimensions

Date of introduction - 201B-01-01