Helical speed reducer H4 t size Determination of the ratio Determinatio H4FH-20-C

Flender/Flender Gear Units/Helical speed reducer H4

k for thermal capacity is absolutely essentialDriven machines Effective operating period under load in hours 0.5 > 0.5 1 > 1 Rolls - Reversing blooming mills 2.5 2.5 - Reversing slabbing mills 2.5 2.5 - Reversing wire mills 1.8 1.8 - Reversing sheet mills 2.0 2.0 - Reversing plate mills 1.8 1.8 Roll adjustment drives 0.9 1.0 Conveyors Bucket conveyors 1.4 1.5 Hauling winches 1.4 1.6 1.6 Hoists 1.5 1.8 Belt conveyors 1 kW 1.0 1.2 1.3 Belt conveyors 1 kW 1.1 1.3 1.4 Goods lifts 1.2 1.5 Passenger lifts 1.5 1.8 Apron conveyors 1.2 1.5 Escalators 1.0 1.2 1.4 Railway vehicles 1.5 Frequency converters 1.8 2.0 Reciprocating compressors 1.8 1.9 Cranes Slewing gears 1.0 1.4 1.8 Luffing gears 1.0 1.1 1.4 Traveling gears 1.1 1.6 2.0 Hoisting gears 1.0 1.1 1.4 Derricking jib cranes 1.0 1.2 1.6 Cooling towers Cooling tower fans 2.0 Blowers (axial and radial) 1.4 1.5 Food industry Cane sugar production Cane knives 1.7 Cane mills 1.7 Beet sugar production Beet cossettes macerators 1.2 Extraction plants, mechanical refrig- erators 1.4 Juice boilers, sugar beet washing machines 1.5 Sugar beet cutters Paper machines of all kinds 1.8 2.0 Pulper drives (on request) Centrifugal compressors 1.4 1.5 Cableways Material ropeways 1.3 1.4 To-and-fro system aerial ropeways 1.6 1.8 -bar lifts 1.3 1.4 Continuous ropeways 1.4 1.6 Cement industry Concrete mixers 1.5 1.5 Breakers 1.2 1.4 Rotary kilns 2.0 Tube mills 2.0 Separators 1.6 1.6 Roll crushers 2.0 Siemens AG 2 Design of the gear units Guidelines for selection Service factors 3/9 Siemens MD 3.1 2Overview (continued) Factor for prime mover f2 Peak torque factor f3 Thermal factor f4 (Gear units without auxiliary cooling or with fan) Thermal factor f5 (For cooling with cooling coil, or with fan and cooling coil) Oil supply factor 8Factor for prime mover f2 Electric motors, hydraulic motors, turbines1.0 Piston engines 4 - 6 cylinders, cyclic vari