SpecialHybrid Acme style nut and screw design, no brake needed.SpecialSpecialSpecificationsSpecificationsValueAnti-rotationNoBrakeIntegral Holding BrakeMaterialCopper; Steel; Zinc; Aluminum; PlasticScrew TypeBallTemperature Max150 °FTemperature Min-20 °FUPC Number883680962130Voltage12 VdcWeight10 lbDimensionsDimensionValue[A]19.89 in[S]12 inPerformancePerformanceValueDuty Cyle50 %Load, Dynamic600 lbfLoad, Static, Max3000 lbf