1、UDC 621.86.061.1 DEUTSCHE NORM U Lifting hooks for lifting appliances Single hooks I Part 1 Unmachined parts asthaken fr Hebezeuge; Einfachhaken; Rohteiie I Supersedes July 1970 edition As it is current practice in standards published by the International Organization for Standardization (/SO), the
2、comma I has been used throughout as a decimal marker. Dimensions in mm 1 Field of application and purpose This standard applies to drop forged and hammer forged unmachined parts with or without nose for single hooks on lifting means and load carrying means of lifting ap- pliances, which are used pri
3、marily for the suspension of loads. The correlation of the lifting capacity of the single hooks to the strength classes and driving gear groups is in accordance with DIN 15 400. The dimensions specified for 11 apply to single hooks forming part of a lifting hook suspension conforming to DIN 15411. I
4、f in exceptional cases, e.g. for existing lifting appliances, different lengths Il are needed, this must be mutually agreed on ordering. In the case of single hooks which are exposed to intense heat (e.g. where the conveyance of molten masses is involved), it is recommended adopting laminated hooks
5、conforming to DIN 15 407 Part 1 and Part 2 for single hooks of size No. 20 and above. In this way, it is possible to standardize the unmachined parts of single hooks made by different manufacturers. 2 Dimensions, designation See pages 2 and 3 for illustrations, designations and table of dimensions.
6、3 Material The specifications of DIN 15 400 shall apply. Single hooks conforming to this standard should predominantly be of strength classes M or P. 4 Finish Surface finish: forged and descaled. Permissible deviations: in accordance with tables 2 and 4. Local indentations are permissible on the hoo
7、k shank and on the transition to the curved back. The negative deviation for such indentations shall be half of the positive deviation for dl in accordance with tables 2 and 4. See DIN 15 401 Part 2 for finished parts with threaded shank. 5 Technical delivery conditions The specifications in accorda
8、nce with DIN 15 404 Part 1 apply. Sole rale nghb of Germon Standards (DIN-Normen) are with Beuth Verlag GmbH. Berlln 30 DIM 15 401 Part 1 Engl. Price group II VI .Ud Sales No. 0104 Page2 DIN 15401 Part 1 2 Dimensions, designation 2.1 TypeRSN Drop forged (S) unmachined part (R) with nose (N) for sing
9、le hooks Nos. 006 to 40 For singie hooks Nos. O06 to 8 (on these unmachined parts, the nose pro- trudes from the shank) For single hooks Nos. 10 to 40 (on these unmachined parts, the nose is partially incor- porated in the shank and is the sameas that of type RFN) 4; (enlarged) rtl cn Section E-F 0
10、SectionE-F d I-% i 4 Section A - 8 -9 Section C - D (enlarried) Marking in accordance with DIN 15 404 Part 1 151 m DIN 15 404 Part 1 tz* Slope 1 Remaining dimensions and data as for single hooks Nos. 006 to 8 Marking in accordance with :4 Designation of a type RSN single hook No. 6 of strength class
11、 M: Single hook DIN 15 401 - RSN 6 - M Table 1. Dimensions of tvpe RSN single hooks I rn Specially selected for production cranes, elg. steel works cranes and rolling mill cranes I DIN 15 401 Part 1 Page 3 Single hook No. 006 to 04 05 to 2.5 4 and 5 6 and 8 10 to 16 20 to 40 Permissible deviations f
12、or dimensions al I a2 I a3 I bl I b2 I dl I e3 I hl I h2 I Il fi I h I k I gl +2 +1 O 0 +3 +1 O 0 +4 +2 O 0 +5 +2 O 0 +6 +3 O 0 +a +3 2.2 Type RF and type RFN For single hooks Nos. 10 to 250 Type RF Type RFN Hammer forged (F) unmachined part (R) without nose Hammer forged (F) unmachined part (R) wit
13、h nose (N) 10 12 16 20 25 32 40 di m 112 90 127 100 85 75 256 286 221 46 26 23 125 106 460 12 20 65 165 236 163 140 12 250 40 125 100 143 112 95 85 292 316 252 53 34 28 140 118 525 14 22 70 185 265 182 160 16 280 55 140 112 160 125 106 95 325 357 280 58 35 33 160 132 595 16 25 80 210 300 204 180 16
14、320 77 160 125 180 140 118 106 370 405 330 68 45 33 180 150 665 18 28 90 240 335 232 200 20 360 112 180 140 202 160 132 118 415 455 360 74 45 38 200 170 735 20 32 100 270 375 262 224 20 400 160 200 160 225 180 150 132 465 510 400 80 45 38 224 190 810 22 36 115 300 425 292 250 20 448 220 224 180 252
15、200 170 150 517 567 447 93 55 42 250 212 905 25 40 130 335 475 326 280 25 500 310 DIN 15 404 Part 1 i100 i125 il60 i200 250 Section A -6 (enlarged) 355 280 402 315 265 236 827 902 688 130 70 50 400 335 1415 40 63 200 530 750 516 450 30 600 1220 400 315 450 355 300 265 920 1020 750 138 70 50 450 375
16、1590 45 71 230 600 850 579 500 30 900 1740 450 355 505 400 335 300 1035 1145 825 147 70 55 500 425 1790 50 80 250 675 950 654 560 30 1000 2480 500 400 565 450 375 335 1150 1275 900 154 70 55 560 475 2048 56 90 285 750 1060 729 630 30 1120 3420 560 450 635 500 425 375 1280 1430 980 164 70 60 630 530
17、2305 63 100 320 840 1180 815 710 30 1260 4800 Section C-D (enlarged) A- . . $ Section E - F “o“ (enlarged) Marking in accordance with DIN 15 404 Part 1 Remaining dimensions and data as for type RF Designation of a type RFN single hook No. 20 of strength class M in accordance with DIN 15 400: Single
18、hook DIN 15 401 - RFN 20 - M Table 3. Dimensions of type RF and type RFN single hooks Page 4 DIN 15 401 Part 1 Table 4. Permissible deviations for type RF and type RFN single hooks I Single hook I Permissible deviations for dimensions Standards referred to DIN 15400 DIN 15 401 Part 2 DIN 15 404 Part
19、 1 DIN 15 407 Part 1 DIN 15 407 Part 2 DIN 15411 Lifting hooks for lifting appliances; mechanical properties, lifting capacities, actual stresses and materials Lifting hooks for lifting appliances; single hooks, finished parts with threaded shank Lifting hooks for lifting appliances; technical deliv
20、ery conditions for forged lifting hooks Lifting hooks for cranes; laminated single hooks for hot-metal ladlesandsteel casting ladles, synopsis, pri nci pa I di mensions Lifting h,ooks for cranes; laminated single hooks for hot-metal ladles and steel casting ladles, individ- ual components Lifting ap
21、pliances; lifting hook suspensions for bottom sheaves Further standards DIN 15 402 Part 1 DIN 15 402 Part 2 Lifting hooks for lifting appliances; ramshorn hooks, unmachined parts Lifting hooks for lifting appliances; ramshorn hooks, finished parts with threaded shank Previous editions DIN 687: 12.30
22、,06.44; DIN 688: 12.30,02.33; DIN 15 401 Part 1 : 07.70 Amendments The following amendments have been made as compared with the July 1970 edition: a) The series of drop forged single hooks has been extended to include hooks up to hook No. 40 inclusive. b) For hammer forged single hooks, the nose thi
23、ckness gl has been specified as final dimension. c) Hammer forged single hooks of size Nos. 6 and 8 have been dispensed with. d) DIN 15 400 has been adopted as the basis for material specifications and, for the correlation of the lifting capacities to the strength class and to the driving gear groups. e) The radius at the base of the nose has been altered. f) The standard has been completely revised editorially. International Patent Classif ication B 66 C 1/34
