1、I DC 621.824 DEUTSCHE NORMEN January 1970 I i : 2 O m I r I - DIN Conical Shaft Ends with External Thread Dimensions I 7448 Sheet 1 Kegelige Wellenenden mit Adengewinde; Abmessungen For connection with IS0 Recommendation ISO/R 775-1 969, see Explanations. Conical shaft ends are intended to take belt
2、 pulleys, couplings and gears. Sizes and details such as chamfer, centre bore and surface quality, which are not specified, are to be designed as appropriate. Key parallel to lbt- Dimensions in mm axis up to dl = 220 mm Key parallel to exterior of cone A -I from dl = 240 to 630 mm Section A-B Design
3、ation of a conical shaft end with key and external thread of diameter dl = 100 mm and length l1 = 210 m: Shaft end 100 x 210 DIN 1448 Continued on page 2 Explanations on page 3 Ieinveikouf dei Norrnblttei durdi Beuth-Vertrieb GmbH, Berlin 30 und Kln DIN 1448 B1. I engl. Reisgr. Page 2 DIN I448 Sheet
4、 I b 35- 40 45 60 Il long 8b 9b 1 O 12,3 13,l 14,l 1s 16 18 19 130 165 200 240 90 in) 150 180 I Key rnd k.7w.J according to DIN 6885 Sheet 1 ) tmad abort - 78 - I 16x10 I M42x3 lo5 I 70 8.8 9 113 12 13 138 Max3 M 56x4 M 64x4 M 72x4 18x11 20x12 22x14 1001-i 110 I - I 210 165 25x14 M 80x4 M 90x4 28x16
5、 M 100x4 M 110x4 14.8 32x18 165 1 75 M 140x6 - I 40xnl I I- a(- UOI- I IMN0x6 U250x6 I M 280x6 U 300x6 M 320x6 M 33x6 _ -Ll= U 4Mx6 31 100x50 M 500x6 Series I is to prefer Centre hole according to DIN 332 Thread according to DIIQ 13; sizes for Pi 550 x 6 are to be calculated according to Undercut ac
6、cording to DIN 76 Transmissible torques according to DIN 748, the diameters d taken as equivalent to the diameters d of the cylindrical daft end. ) The shape of the key and the type of keyway are at mamfacturers choice. If keyway Tgpe.N 2, according to DIB 6885 Sheet I, iS used, the key must be prev
7、ented from shifting longitudr- nally, e.g., by UShg me J key. DIN 13 sheet 30. of the conical shaft end being Por conical shaft ends with internal thread, see DIN 1449. A standard dealing with shoulder nuts is in course of preparation. DIN 1448 Sheet I Page 3 This Standard conforme to IS0 Recommenda
8、tion SSO/R 773-1969 Cylindrical and 1/10 conical ahit end8 Bouta darbre cylindriquee et ooniquei conicit6 1/10 The following shaft end diametera, together with the appropr caun they hate not hitherto been uudr it. iena we nc been ncluded, In the IS0 Recommendation, the depth of the keyway, in tha ca
9、m of shift eada of diametera up to 220 .PI, is referred to the mean conical diameter and ia shown accordingly. As, however, the depth of the keyway CMnOt be meaeured at this poiut, the valuee have been converted to the diameter dl, and the dimension tl expreesed on the bada of diMeter dl. It ii propoaed to imue continuation sheets for electrial engineering and machine construction; they rill include a selection of shaft onda together with additional data.
