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Spannkraft-Diagramme für <strong>KFD</strong>- Gripping force diagrams<strong>KFD</strong>Power chucks without through-holeSpannkraft-Drehzahl-DiagrammeGripping force/speed diagramsThe loss of gripping force was determinedexperimentally on a chuck with matchedUB top jaws. It is largely independent ofthe initial gripping force at zero speed.Upper curve:min. centrifugalforce of top jawLower curve:max. centrifugalforce of top jaw- Gripping force/speed diagramsGesamtspannkraft – Total gripping force kN200200<strong>KFD</strong> 315<strong>KFD</strong> 315180<strong>KFD</strong> 315180<strong>KFD</strong> 315(shallow design)(Flachbauweise)(shallow design)160160<strong>KFD</strong> 250<strong>KFD</strong> 140 250140Total gripping force kN12010080604020120100<strong>KFD</strong> 200<strong>KFD</strong> 20080<strong>KFD</strong> 160<strong>KFD</strong> 1606040<strong>KFD</strong> 130<strong>KFD</strong> 130201000 2000 3000 4000 50001000 2000 Speed min -1 3000 4000 5000Drehzahl – Speed min –1Power chuck withoutthrough-hole <strong>KFD</strong>To obtain the specified gripping forces,the chuck must be in a perfect conditionand lubricated with F 80 lubricant recommendedby Röhm. Measuring point near chuck face.Example:For a <strong>KFD</strong> chuck size 250 and an appliedoperating power of 40 kN, the total grippingforce is approx. 86 kN.400360320Total gripping force kN400<strong>KFD</strong> 360 800<strong>KFD</strong> 800<strong>KFD</strong> 630<strong>KFD</strong> 320 630<strong>KFD</strong> 500<strong>KFD</strong> 500280<strong>KFD</strong> 4002402001601208040200 400 600 800 1000 1200 1400 1600 1800 2000Speed min -1KraftspannfutterPower chucksGripping force/operating power diagram for three-jaw chucksKraftspannfutterPower chucks315Chuck size315250200160130Futter-Größe -Chuck size250200160130505050 7050 9035Gesamtspannkraft - Total gripping force kN100 150 190Total gripping force kN50 100 140100 150 19050 9050 10050 7014010 20 30 40 50 60 70 80 90 10035Betätigungskraft kN - operating power kN630/800500630/800400Futter-Größe -Chuck sizeChuck size500400100 150100 150100 150100100 150Gesamtspannkraft - Total gripping force kNTotal gripping force kN200 250 300 360200 250150 200 250200 25030 40 50 60 70 80 90 100 110 120 130100 Betätigungskraft 150 kN200 - operating power 250 kN300200 250 300 360300608210 20 30 40 50 60 70 80 90 10030 40 50 60 70 80 90 100 110 120 130Operating power kNOperating power kN6032
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