SJB ball screw jack lift is high precision screw jack, it is of compact and high-performance design. It is translating screw type screw jack.It has 13 models,dynamic load from 11kN to 111kN. Common worm ratios are 6:1,12:1,24:1 and 32:1.
SJB Ball Screw Jack Main Parameters:
Screw Jacks Accessories available:
Worm Ball screw lift principle
Ball screw principle is the rotary motion into linear motion, or linear motion into rotary motion ideal product. Ball screw by the screw, nut and ball composition. Its
function is to transform rotary motion into linear motion, which is a
further extension and development of ball screws. The significance of
this development is to change the bearing from rolling motion to sliding
motion. Due to
its small frictional resistance, ball screws are widely used in a
variety of industrial equipment and precision instruments. Ball
screw is the most commonly used transmission element in machine tools
and precision machinery. Its main function is to convert rotary motion
to linear motion or to convert torque to axial repetitive force with
high precision, reversibility and high Efficiency characteristics.