Rexnord-Stephan S4 Catalogue

04-2007 3P0200-XX3. Instructions for Drive SelectionAPPLICATIONRuntime hours/day8h/24h 16h/24h 24h/24hAgricultural machinesMechanical gutter cleaners 0.8 - 1* 1 -Harvesting machines 0.8 - 1* 1 -Textile machineryLooms 1.25 1.5 1.75Spinning machines 0.8 - 1* 1 1.25Laundry machines 1 1.25 1.5Print and paper technologySheeting cutter 1 1.25 1.5Winding drives 0.8 - 1* 1 1.25Bale feeder 1 1.25 1.25* = 0.8 if operating time < 3h/24h and no external loads occur** = drives must be dimensioned by the manufacturer+ = it is recommended consulting the manufacturer for selecting the reverse lockThese Service factors (SF) are empirical values that are based on AGMA and ISO information andexperience. They apply to driven machines corresponding to today's state of the art for normal operatingconditions and for actuating with electric motors. A consultation is required for special applications,passenger elevators or special operating conditions, e.g. high mass acceleration factors.3.2 External loads, axial / radial, conversion, connectionsThe permissible radial loads listed in the selection tables are guide values and used only for rough orientation purposes.The data refer to action of load in the middle of the respective solid shaft. If no radial load is present, half thevalue of the radial load specified in the selection tables is permitted as axial load. The resulting maximum value of aradial load for each gear unit size generally occurs at low speeds and is determined by the material and geometry ofthe shaft. For all lower values of the frame size, the predetermined bearing life LH10 of the output shaft bearing is limiting.Since variables such as torque, speed, direction of rotation and load angle of action enter into the calculation andRexnord-Stephan always assumes the worst-case scenario, significantly higher external loads are permissible in mostcases while giving the effective loads. Please contact us and we will gladly recalculate your specific case.3.3 Thermal break even performanceTorque and output stated in the selection charts are mechanical limit values. Depending on mounting position andmounting situation it is possible that the gearbox will overload thermal before reaching the mechanical breakevenperformance. Outputs marked (1) are exceeding the thermal break even performance already under normalapplication conditions.If the real operation conditions are known, the heat breakeven performance can be recalculated by RexnordStephan. The heat breakeven performance can be increased by using appropriate measures (such as using syntheticlubricants with increased thermal consistency). The following data is necessary for recalculation:Type or gearbox ......................................................Mounting position ....................................................Input speed (range) .........................................1/minRatio .........................................................................Used output ........................................................kWDuty / power-on time .................................................Ambient Temperature ...........................................°CInstallation site .........................................................O in a small, closed roomO large roomsO outsideMounting situation (sketch/drawing)...................................................................................S20