1、DEUTSCHE NORM January 1970 UDC 621.824 Conical shaft ends with internal thread Dimensions - DIN 1449 - Kegelige Wellenenden mit Innengewinde; Abmessungen In keeping with current practice in standards published by the International Organization for Standardization (ISO), a comma has been used through
2、out as the decimal marker: See Explanatory notes for connection with International Standard ISO/R 775 : 1969 published by the International Organization for Standardization. Dimensions in mm % B- 4 I 1 This standard specifies dimensions for the conical shaft ends with internal thread which are inten
3、ded to accom- modate belt pulleys, couplings and gears. See DIN 1448-1 for conical shaft ends with external thread. Scope and field of application 7 tf _L _-_ L- 1 /i0 taper :,-F-= - _ - - - - +- , e8 -47 *G- -13 - - 14 - 11 - 4 Size of internal Key and keyway to DIN 6885-1) dl Long Short 12 r, 4 Lo
4、ng Short b x h thread (d2) 14 3,2 10 14 . 23 M4 4 125 17 3,2 2,9 M5 M6 42 24 6 19 25 41 36 5x5 M8 series series +2 series series O min. 1,7 - 2x2 3x3 12 25 22 16 19 3,4 3,1 20 22 36 22 5 16 21 24 3,9 36 25 28 - - 18 28 16 4x4 d3 43 5,3 6,4 8,4 The type of centre hole, as specified in DIN 332-2, shal
5、l be at the manufacturers discretion. The thread size shall be as specified in DIN 13-1. Transmissible torques shall be as specified in DIN 748-1, diameter dl of the conical shaft end corresponding to diameter d of the cylindrical shaft end. ) The form of key and keyway shall be at the manufacturers
6、 discretion. If type N2 keyways as specified in DIN 6885-1 are used, the key shall be secured against axial displacement (e.9. by means of a type J key). Continued on page 2. Beuth Verlag GmbH, Berlin, has the exclusive right of sale for German Standards (DIN-Normen). 06.95 DIN 1449 Engl. Price grou
7、p 2 Sales No. 0102 Page 2 DIN 1449 I 12 Key and keyway to 4 4 t bx* thread d3 4s 3,9 5x5 Size of internal DIN 6885-1) (d2) Long Short O min. series series 4-2 785 9s l2 I I L 22 30 5 28 373 7,l 8A 31 15 1 42 1 53 14,l 85 106 qT-p-p 13,l I M 42 13 I 28x16 43 II M10 I 103 4P I 6x6 I 1 7 16x 10 8,8 I 1
8、8x11 I M24 I 25 98 I 2ox12 I M30 1 31 Standards referred to DIN 13-1 DIN 332-2 DIN 748-1 DIN 1448-1 DIN 6885-1 ISO/R 775: 1969 IS0 metric screw threads; 1 mm to 68 mm diameter coarse pitch threads; nominal sizes 60 centre holes with thread for shaft ends for rotating electrical machines Cylindrical
9、shaft ends; dimensions and nominal torques Conical shaft ends with external thread, dimensions Drive type fasteners without taper action; deep pattern parallel keys and keyways Cylindrical and 1 /IO conical shaft ends Explanatory notes This standard agrees in substance with International Standard IS
10、O/R 775 : 1969. However, some sizes have not been adopted and are given below for information only. Key and keyway to DIN 6885-1) I Sizeof I In ISO/R 775, the keyway depth has been specified as a function of the mean cone diameter, .e. the diameter at half the cone length. Since the keyway depth cannot be measured at this point, the values have been converted to diameter d, and dimension d related to that dimension. As a departure from ISO/R 775, various dimensions for the threaded hole have additionally been specified in this standard. For I), see page 1.
