1、mX: 621.951.7 DEUTSCHE NORMEN arch 1975 Bridge Reamers with Morae Taper shank 311 lietlochreibahlen mit Uorsekegelschnft For connection with the International Standard IS0 22 Organization for Stanarbization (Bo), see The bridge reamers need not conform to the illustration, only the specified dimensi
2、ons are to be maintained. -1 Dimension8 in mm 2 published by the International Taper o. 1: 10 on l3 Morae taper ayk B according to DIN 228 II I-t / / / .-.-. Designation of a bridge reamer with Morse taper shank of diameter d 15 m, in high epee technical conditions of delivery DIR 228 Part 1 Hachine
3、 tapere; Horse tapers an8 metric tapers; taper shanks DRI 332 Part I DIN 2172 Part I Centre holes 600, typee E, A, B and C Remere; technical conditions of delivery for high epeed steel reamers with shank Emlanationa Thia Standard agrees in for Standardization (IBO!: E: Machine bridge reamers P: Albs
4、oirs de chaudronnerie, a machine Obtainable from the Oeriin Institute for Staadardimtion, Berlin. Compared with the October 1954 Issue, the Standard now incorporates diameter rangee which at the same time fir the dimeneiOM of remere with Intermediate diameters. Both the diameter ranges and the dimcn
5、- sions are in line with the International Standard 160 2238. For machine bridge reamers up to d = 17 mm the lead length (, has been made shorter than in IS0 2238, and irr in fact about three times diameter d, becauee longer ?cad lengths yield unduly small tip diam- eters with consequent risk of breakage. art vith the standard IS0 2238-1972 published by the International Organization COPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information Handling Services
