SpecialHybrid Acme style nut and screw design, no brake needed.SpecialSpecialSpecificationsSpecificationsValueAnti-rotationNoBrakeIntegral Holding BrakeMaterialCopper; Steel; Zinc; Aluminum; PlasticScrew TypeBallTemperature Max150 °FTemperature Min-20 °FUPC Number883680009163Voltage12 VdcWeight10 lbDimensionsDimensionValue[S]5 inPerformancePerformanceValueDuty Cyle50 %Load, Dynamic2200 lbfLoad, Static, Max3000 lbf