(ISO 2 INTERNATIONAL STANDARD 2940/11 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEKAYHAPOAHAH OPTAHH3ALIHA IO CTAHIAPTH3ALIHH·ORGANISATION INTERNATIONALE DE NORMALISATION Milling cutters mounted on centring arbors having a 7/24 taper - Inserted tooth cutters Fraisesa surfacer eta surfaceretdresser,a montagc direct surnezdebroches aconicite7/24-Fraisesa lamesamovibles First edition-1974-04-01 Corrected and reprinted ISO 2940/lI-1974 (E) UDC621.914.2 Ref.No.IS02940/l1-1974 (E) Descriptors : tools, milling cutters, dimensions, interchangeability. Price based on 3 pages FOREWORD ISO (the International Organization for Standardization) is a worldwide federation of national standards institutes (Iso Member Bodies). The work of developing International Standards is carried out through IsO Technical Committees. Every Member Body interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with iso, also take part in the work. Draft International Standards adopted by the Technical Committccs arc circulated to the Member Bodies for approval before their acceptance as International Standards by the ISO Council. International Standard ISO2940/ll was drawn up by Technical Committee ISO/TC 29, Small tools, and circulated to the Member Bodies in October 1972. It has been approved by the Mermber Bodies of the following countries : Belgium India Switzerland Czechoslovakia Israel Thailand Egypt, Arab Rep. of Italy Turkey France Poland U.S.A. Germany Romania U.S.S.R. Hungary South Africa, Rep. of TheI Member Bodies of the following countries expressed disapproval of the document on technical grounds : Austria Japan Sweden United Kingdom InternationalOrganizationforStandardization,1974 Printed in Switzerland INTERNATIONALSTANDARD ISO2940/II-1974(E) Milling cutters mounted on centring arbors having a 7/24 taper -- Inserted tooth cutters SCOPEANDFIELDOFAPPLICATION This International Standard applies to inserted tooth cutters mounted on centring arbors having a 7/24 taper.These cutters are equipped either with high speed steel inserted teeth or with inserted teeth with brazed carbide tips. It concerns firstly, the so-called "single purpose mounting" milling cutter, arbor located, to be used with a well-defined spindle nose having a 7/24 taper; secondly, the so-called "dual purpose mounting" milling cutter, arbor located, to be used with both spindle nose No.50 and spindle nose No,60 having a 7/24 taper. Cutter bodies for single purpose mounting, having outside diameters of cutter bodies or nominal cutting diameters, D, from 160 to 630 mm, are intended to equip spindle noses Nos. 40 - 45 - 50 - 55 or 60 having a 7/24 taper; those for dual purpose mounting, having diameter D between 315 and 630 mm, are intended to equip either No. 50 or No. 60 spindie noses having a 7/24 taper. Dimensions for centring arbors and fitting dimensions for fixation are given in ISO 2940/l. 2REFERENCES ISO/R1101,Technical drawings-Tolerances of form and of position--Part/:Generalities, symbols, indications on drawings. Iso 294o/1, Milling cutters mounted on centring arbors having a 7/24 taper -Fitting dimensions -Centring arbors. 1