... Speed L1 turn 0.25 mm travel375 mm/minTolerance & BacklashTrapezoidal-type screw axial backlash 0.15 mm, radial backlash 0.2 ... by an external guide rail.Self-locking FunctionRNF Series Trapezoidal type screw is of self-locking. The self-locking function depends ... be used as a fixed stop.Accessory:bevel gearboxes,hand wheel,electric motor,travel nut,protetive tube,rubber bellows,limited switches ...