Transcription of Gear Cutting Tools
1 Leitz Metalworking Technology GroupPrinted in Germany, No. 1624 (0405 1 DTP/GK) gear Cutting Tools Hobbing gear MillingGear Cutting ToolsBelgien/BelgiumSA LMT Fette NVIndustrieweg 15 B21850 GrimbergenFon +32-2/2 51 12 36 Fax +32-2/2 51 74 89 Brasilien/BrazilLMT B hlerit Andr de Le o 155 Bloco ACEP: 04672-030 Socorro-Santo AmaroS o PauloFon +55/11 55 46 07 55 Fax +55/11 55 46 04 Tooling Systems(Nanjing) Co. LMTNo. 81, Zhong Xin RoadJiangning Development ZoneNanjing 211100 Fon +86-25/2 10 31 11 Fax +86-25/2 10 63 Deutschland GmbHHeidenheimer Stra e 84D-73447 Oberkochen Tel. +49 (0) 73 64/95 79-0 Fax +49 (0) 73 64/95 79-80 00E-mail: Kingdom LMT Fette LimitedLongfordCoventry 304 Bedworth RoadWarwickshire CV6 6 LAFon +44 24 76 36 97 70 Fax +44 24 76 36 97 FETTEParc d Affaires Silic-B timent M216 Avenue du Qu becVillebon sur YvetteBoite Postale 76191963 Courtab f CedexFon +33-1/69 18 94-00 Fax +33-1/69 18 Yvon Lavancia, FrankreichTel.
2 +33 (0) 4 74 75 89 89 Fax +33 (0) 4 74 75 89 90E-mail: Werkzeugfabrik GmbH & Co. KGVogelsangstra e 8 D-73760 Ostfildern, DeutschlandTel. +49 (0) 711 3 48 01-0 Fax +49 (0) 711 3 48 12 56E-mail: GmbH & Co. KGWerk VI-Stra eDeuchendorf A-8605 Kapfenberg, sterreichTel. +43 (0) 38 62 300-0 Fax +43 (0) 38 62 300-793E-mail: GmbHGrabauer Str. 24D-21493 Schwarzenbek, DeutschlandTel. +49 (0) 41 51 12-0 Fax +49 (0) 41 51 37 97E-mail: GmbHAn den Stegmatten 7 D-77933 Lahr, DeutschlandTel. +49 (0) 7821 943-0 Fax +49 (0) 7821 943-213E-mail: Cutter LP800 Liberty Drive Libertyville, Illinois 60048, USATel. +1 (847) 362-1560 Fax +1 (847) 362-5028E-mail: Fette India Pvt. Ltd. 29, II Main RoadGandhinagar, AdyarChennai 600 020 Fon +91-44/24 405 136 / 137 Fax +91-44/24 405 Boehlerit de Romero No.
3 1359 Col. Letran Valle03650 Mexico +52 (55) 56 05 82 77 Fax +52 (55) 56 05 85 sterreich/AustriaFETTE Pr zisionswerkzeugeHandelsgesellschaft mbHRodlergasse 51190 WienFon +43-1/3 68 17 88 Fax +43-1/3 68 42 Singapore Representative Office1 Clementi Loop #4-04 Clementi West District ParkSingapore 12 98 08 Fon +65 64 62 42 14 Fax +65 64 62 42 Boehlerit Narcis Monturiol, 11 Planta 1a08339 Vilassar De Dalt (Barcelona)Fon +34-93/7 50 79 07 Fax +34-93/7 50 79 RepublicLMT FETTE spol. zni 7627 00 Brno-SlatinaFon +420-5/48 21 87 22 Fax +420-5/48 21 87 Fette spol. BoehleritVodni 1972. CZ-760 01 ZLINFon +420 57 72 14 989 Fax +420 57 72 19 061T rkei/TurkeyB hler Sert Maden Takim Sanayive Ticaret Asfalti zeri Kartal 81412 167 Fon +90-216/3 06 65 70 Fax +90-216/3 06 65 Boehlerit 2036 Erdliget Pf.
4 322030 ErdFon +36/23 52 19 10 Fax +36/23 52 19 Cleveland ParkwaySuite 180 Cleveland, Ohio 44135 Fon +1-2 16/3 77-61 30 Fax +1-2 16/3 77-07 87 Pictures were generously provided by the following machinetool manufacturers:Getriebebau Nord Schlicht & K chenmeister, BargteheideGleason-Pfauter Maschinenfabrik GmbH, LudwigsburgLiebherr Verzahntechnik GmbH, Kempten by FETTE GMBHThis publication may not be reprinted in whole or part withoutour express permission. All rights reserved. No rights may be derived from any errors in content or fromtypographical or typesetting , features and dimensions represent the currentstatus on the date of issue of this catalogue. We reserve theright to make technical changes. The visual appearance ofthe products may not necessarily correspond to the actualappearance in all cases or in every informationPageImportant information4 Services5An introduction to FETTE64 Important informationArticle numbersTo speed up order supply and toavoid confusion, orders should al-ways specify the article numberslisted in this catalogue does not containprices.
5 Prices can be found in thelatest price list for standard arti-cles. Please consult us for a quotewith regard to semi-standard orspecial order valueOrders with a total value of lessthan DM are subject to aprocessing surcharge of We trust that you will appre-ciate the need for this groupsOur wide range of hobbing Tools isdivided into tool groups, which aremarked in the index at the side ofthe page and are thus easily rangeThe entire FETTE catalogue prod-uct range with some 15,000 stan-dard items, 1,100 in the hobbingarea alone, is subject to continu-ous improvement. As part of thisprocess, we not only introducenew and therefore technologicallysuperior products into our range,but also take care to remove out-dated products from some cases it could happen thatwe do not carry in stock the itemwhich you have ordered.
6 In thiscase you will in general receiveproducts from us technologicallybetter product, but at least anequivalent alternative. In case ofdoubt, our sales team is availableto determine a design that will pro-duce best possible results for following this procedure, youcan be sure that you are always besupplied with Tools , which aretechnologically to the newest stan-dard. For that reason, we do notfeel not obliged to supply Tools ,which are still shown in the cata-logue, or which have been clearedfrom the programme already number indexAll catalogue numbers, arranged innumerical order and with the pagenumber, are listed on page Standard indexAn index on all DIN Standard num-bers covered is listed on detailsTechnical application details of ageneral nature commence on page125, whereas the specific techni-cal details concerning individualproduct groups are directly as-signed to the section formsShould you be unable to find a so-lution to your machining tasksamong the 1,100 items which westock, special forms are availableupon request.
7 Including formsmanufactured specifically to Services6 Application advice and serviceProduction on modern machine Tools combined with up-to-date CNC techniqueDesign and developmentFETTE a brief introductionQuality assuranceTrainingHeat treatmentEcology and environment protection are part of the companyphilosophy, recognizable on the factory grounds7 Hobsfor spur gears, straight- or helical tooth, with involute for the manufacture of straight spur gears, straight or helical tooth, with involute flanks10 Explanatory notes on the descriptions and size tablesfor hobs for straight spur gears11 Solid-type hobsrelief ground, DIN 58411200213relief ground, in solid carbide200814relief ground, DIN 8002 A202215relief turned, DIN 8002 B203116relief ground, DIN 8002 B203216relief ground 203317relief ground, for spur gears to DP204218for straight spur gears 202647 Multiple-gash hobs19 Solid carbide hobs26 Roughing hobs32relief turned, 20 gashes, with drive slot205134relief ground, 20 gashes, with drive slot205334relief turned, 16 gashes, with drive slot205534relief ground, 16 gashes, with drive slot205734relief turned, 20 gashes, with keyway206135relief ground, 20 gashes, with keyway206335relief turned, 16 gashes, with keyway206535relief ground, 16 gashes.
8 With keyway206735 Roughing hobs with indexable carbide inserts36with 19 blade rows216339 Carbide skiving hobs40 Solid carbide202844with 12 or 15 brazed-on blade rows212945with indexable carbide inserts215346 FfsfoFfsfuHobs for producing straight- and helical-tooth spur gears with involute flanksThe fundamental geometrical con-cepts of a spur gear hob for gener-ating gears with involute flanks arelaid down and explained in detailin DIN 8000. According to this, thebasic body of a hob is always aworm. If this worm is now providedwith flutes, Cutting teeth become capable of cuttingby being backed off or relieving operation is carriedout on machine Tools specially de-veloped for this process; it is verytime consuming and therefore alsoexpensive. For hobs to moderateaccuracy specifications, reliefturning is sufficient; for stricterquality requirements the hob is re-lief , relief turned hobsachieve quality class B approxi-mately to DIN 3968.
9 Relief groundhobs achieve quality classes A, AAand higher. The highest qualityclass in DIN 3968 is AA. For ex-ceptionally high quality require-ments it is usual to restrict the tol-erances of quality class AA stillfurther. Quality class correspond-ing to AAA to DIN 3868, withoutcomment, means the restriction to75 % of the AA tolerances for allmeasurable special tolerance restrictions ofthe AA tolerance are required, thisis also done with the AAA refer-ence, but the individual measur-able variables and the tolerancerestriction are now given in % ordirectly in m. quality classAAA to DIN 3968, item nos. 16 and17 restricted to 50 % of the toler-ance of purpose of hob tolerances isto assign the Tools to a qualityclass according to their the basis of the hob qualityclasses, the expected gear qualitycan then be all requirements aimed at a good gear quality in the widersense, very quiet running or aspecific addendum- and deden-dum relief are achieved solelythrough a high cutter quality.
10 Forsuch needs, hobs with a definedcrowning depth have proved suc-cessful. Depending on the loadand the required gear perfor-mance, the suitable crowningdepth can be selected from thevarious tables N102S, N102S/3 orN102S/5. It must be noted that thetool depth crowning is not trans-mitted completely to the gear . Thelower the number of teeth of thegear, the less the effective convex-ity portion. 10 Tolerances for hobs with special class tolerance values in 1/1000millimetres0,63 11 1,61,6 2,52,5 44 6,36,3 1010 1616 2525 40 FfSfo2528323640506380100 FfSfu121416182025324050N 102 SFfSo444568101216 FfSu00000000 0 FfSao161616202432405064 FfSau888101216202532 FfSfo121416182025324050 FfSfu888101216202532N 102 S/3 FfSo444568101216 FfSu00000000 0 FfSao121416182025324050 FfSau888101216202532 FfSfo888101216202532 FfSfu444568101216N 102 S/5 FfSo00000000 0 FfSu00000000 0 FfSao888101216202532 FfSau00000000 0 ModuleTolerance rangeinvolute withtop convexityFfSfoFfSfuFfSaoFfSauTolerance rangeFfSfoFfSfuTool root sectionTool tooth tipForm deviation of the Cutting edgeNotes to the descriptions and size tablesfor spur gear hobsOwing to the many different hobversions available.
