SpecialHybrid Acme style nut and screw design, no brake needed.SpecialSpecialSpecificationsSpecificationsValueAnti-rotationNoBrakeIntegral Holding BrakeMaterialCopper; Steel; Zinc; Aluminum; PlasticScrew TypeBallTemperature Max150 °FTemperature Min-20 °FUPC Number884107299648Voltage115 VacWeight12 lbDimensionsDimensionValue[A]21.89 in[S]14 inPerformancePerformanceValueDuty Cyle50 %Load, Dynamic1500 lbfLoad, Static, Max3000 lbf