Basic Info.

Product Description

Models rn-0.5t, 1t, 2t, 3t, 5t, 10t, 15t, 20t, 30t, 40t, 50t, 100t components worm gear, worm shaft, bearings, oil sealing, case iron gearbox shaft cover, top cover, self-locking trapezoidal screw etc. speed of travel * fast speed 1 turn 1 mm travel 1500 mm/min * mid speed 1 turn 0.5 mm travel 750 mm/min * low speed l 1 turn 0.25 mm travel 375 mm/min lateral force usually, screw jack only loads lift screw axial loading, dont permit to load any lateral force. any lateral force will reduce screw jack working life, even damage screw jack. we suggest, lateral forces that may occur should be taken by an external guide rail. self-locking function rn-series trapezoidal type screw is of self-locking. the self-locking function depends on a variety of parameters: large pitches, different gear ratios, lubrication, friction parameters, ambient influences( such as high or low temperatures), vibrations and mounting position. anti-rotation devices single screw jack application, isnt guided and without any guide rails, lifting screw does not do linear motions, only rotation, especially light loading. if that is the case, need to extra add anti-rotation devices. keyed screw jack solves this problem. stop collar prevents the screw from being removed from the jack gearbox. following clients requirement, we fit stop collar for screw jacks. the stop collar cannot be used as a fixed stop. application industries: precision lift table, roll forming machines, press machines, tunnel freezer, surface-gringing machines, satellite dish antenna, solar tracking system, sluice gate, theatre stage, slitting line, precision leveler, powered straightener, paper machines, food processing machines, textiles machines etc.