Hobs Milling Cutters Ed0

GEAR HOBS & MILLING CUTTERS Hob & Milling cutters for the gear manufacturing industry GEAR HOBS & MILLING CUTTERS STAR SU IS A WORLD LEADER IN THE CUTTING TOOL INDUSTRY STAR SU has led the way in developing High Performance Hobbing using Solid Carbide (SC) Hobs and High Speed Steel Hobs with Advanced Coatings in wet and dry cutting applications. STAR SU pioneered a process for manufacturing precision milling cutters without form grinding after heat treat. This gives our customers the benefit
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  GEAR HOBS&MILLING CUTTERS Hob & Milling cutters for thegear manufacturing industry   GE A R H  OB  S  & MI  L L I   N G C U T T E R  S  WWW.STAR-SU.COM STAR SUhas led the way in developing HighPerformance Hobbing using Solid Carbide (SC)Hobs and High Speed Steel Hobs with AdvancedCoatings in wet and dry cutting applications.STAR SUpioneered a process for manufacturingprecision milling cutters without form grindingafter heat treat. This gives our customers thebenefits of ground quality tools without the lossof usable life normally seen in ground cutters.To complement our manufactured products, wehave partnered with PWS , Präzisionswerkzeuge- Schmölln, to offer a complete line of gearcutting tools including shaper cutters, shavingcutters, and coarse pitch hobs.In our effort to stay abreast of today’s fast movinggear market, Star SU is an active member ofthe American Gear Manufacturers Association,holding two committee chairmanships includingthe hob tolerance committee.Star SU manufactures hobsModule (DP) 0.5-17 mm (50.8 – 1.5)Diameter 20-200 mm (.75-8.0)Larger modules available on request.Involute Spline Hobs have straight sides teeth like a gear hob,and are usually of stub tooth depth. They are made in single ormultiple thread designs, with diametral pitches ranged from 2.5/5to 128/256 and pressure angles of 30°, 37.5°, or 45°.Multiple Thread Involute Hobs are specified for production runsof gears on gear hobbing machines. Finish and accuracy aresomewhat less than that of single thread hobs, and tooth shavingoperations are normally required. Depending on the lead angle,they will be straight or spiral gash.Single Thread Involute Hobs use straight angled sides forgenerating gears for maximum accuracy on gear hobbingmachines. They are normally specified for processes where nosubsequent tooth finishing operations are required, or whereimproved accuracy before tooth shaving operations is required. STAR SU IS A WORLD LEADER IN THE CUTTING TOOL INDUSTRY  WWW.STAR-SU.COM  GE A R H  OB  S  & MI  L L I   N G C U T T E R  S  Worm Gear Hobs are part of specific tools that match the wormshaft with sharpening allowance. This plunge cutting tool ismanufactured in shell or shank designs with straight or spiralgash. Lead angles up to 45° are available.Special Drive Hobs can be designed and manufactured for anyspecial requirement. From OD and face clamping to clutch keyways with special hubs.High Speed Steel Hobs with Advanced Coatings close the gapbetween solid carbide and traditional high speed steel. HighSpeed Steel Hobs with Advanced Coatings offer improvedperformance over traditional high speed steel in both wet ordry applications and are available in premium substrates andvarious coatings.Camshaft Hobs are specially designed involute hobs for plungecutting the gear on most automotive camshafts. It has clearancechamfers on one of both ends to clear lobe or bearing journals fortiming, and topping if necessary.Special Form Hobs are produced for a wide variety of tooth formssuch as square shafts, as well as conjugate forms for pump gearthat transmit motion. Generally, these special hobs generate thecorrect tooth form at only one depth, so accuracy is critical.Sprocket Hobs are specially designed to produce accuratefinishes on several chain sprocket tooth forms. Like spline hobs,they produce the correct tooth form at only one depth of cut, sotooth form accuracy is extremely important. Sprocket hobs areavailable in single and multiple thread designs.   GE A R H  OB  S  & MI  L L I   N G C U T T E R  S  WWW.STAR-SU.COM Straight Key Spline Hobs with Lugs is a special feature thatcan be included on the hob to produce root clearance whennecessary. Other special features, such as clearance grooves forshoulder clearance can be added to any of the spline hobs.Shank hobs are designed for today’s high cutting velocity toolswith extra long active cutting lengths. They are designed for mosthobbing machines in today’s hobbing machine market.PWS Precision Quality coarse pitch, large body hobs, are nowavailable in tooth sizes from module 20 (1.25 DP) to module 40(.635 DP) up to 430 mm (17”) in diameter.Solid Carbide Hobs can be used in shell or shank design to cutgears with or without coolant, and are available in keyway andclutch drive designs.Straight or tapered key spline hobs have specially curved toothforms and are made in single and multiple thread types. They areused to produce at only one depth of cut.Star SU manufactures accurate, long-lasting, form-relieved millingcutters for a wide variety of applications. Every tool is a customdesign for a specific application.


Nov 7, 2017
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