Following tables show the screw jack LINEAR SPEED v [mm/s] and relative TORQUE T1 [Nm] and POWER P1 [kW] on input shaft, with reference to the INPUT SPEED n1 [rpm], the RATIO (RV, RN, RL) and the LOAD [kN] applied on the screw jack. Intermediate values for linear speed v, torque T1 and power P1 at different input speed can be calculated by linear interpolation of the figures stated in the table. The figures in the tables refer to work with max. duty cycle of 30 % over 10 min time period or 20 % over 1 hour time period at 25°C environment temperature. ATTENTION! The figures in the red shaded area indicate operational restrictions due to thermal limits. When the selection is made within such area, the duty cycle must be reduced or the greater size screw jack must be selected, in order to allow effective heat dissipation. For a better evaluation, please contact SERVOMECH Engineering Dpt. Screw jacks SJ Series - 2-starts acme screw 61