Röhm Main Catalogue Clamping Technology Page 529
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Power chucks with through-hole KFD-HS - optimized centrifugal forces APPLICATION Premium power chucks with through-hole for maximum speeds and optimized centrifugal forces. TYPE Power chuck available with cylindrical centre mount or short taper mount. 3-jaw version with serration (90°) or tongue and groove. 2-jaw version with serration (90°). CUSTOMER BENEFITS Low centrifugal force losses and high speeds thanks to special wedge hook system with annular piston Larger than average through-hole for wide range of workpieces Maximum precision thanks to rigid chuck construction If necessary quick conversion to a different spindle nose by simply exchanging the centering adapter TECHNICAL FEATURES - Universal construction of the piston connection (piston does not project into the spindle bore area, even with the piston position moved back) Long jaw guide Clamping inserts can be used for bar machining (special version) Included in the scope of delivery: Chuck, chuck and jaw mounting screws, mounting wrench, slot nuts (without top jaws) 90° Gripping force/speed diagram (3-jaw chucks only) Upper curve: min. centrifugal force of top jaw KFD-HS 200 100 KFD-HS 175 Total gripping force kN The loss of gripping force was determined experimentally on a chuck with matched UB top jaws. It is largely independent of the initial gripping force at zero speed. 120 KFD-HS 160 80 KFD-HS 140 60 KFD-HS 110 40 Lower curve: max. centrifugal force of top jaw 2000 3000 4000 5000 6000 7000 8000 9000 Speed min -1 280 260 KFD-HS 400 240 Total gripping force kN To obtain the specified gripping forces, the chuck must be in a perfect condition and lubricated with F 80 lubricant recommended by RÖHM. Measuring point near chuck face. 1000 Power chuck with through-hole KFD-HS 20 KFD-HS 500 220 200 180 KFD-HS 315 160 KFD-HS 250 140 120 100 80 60 40 20 1000 2000 3000 4000 5000 6000 Speed min -1 www.eshop.roehm.biz 6015
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