worm gear screw jack

she range 14 different sizes with lifting capacities ranging from 5 kn to 2000 kn input speeds of up to 1500 rpm self-locking trapezoidal screw grease-lubricated configuration worm gear pairs in two ratio steps (normal n ......she range 14 different sizes with lifting capacities ranging from 5 kn to 2000 kn input speeds of up to 1500 rpm self-locking trapezoidal screw grease-lubricated configuration worm gear pairs in two ratio steps (normal n and slow l) worm-drive shaft is case-hardened and ground hse range 9 different sizes with lifting capacities ranging from 5 kn to 1000 kn input speeds of up to 3000 rpm self-locking trapezoidal screw separate lubricating circuits: tr screw with grease-lubrication and worm gears with oil-splash lubrication worm gear pairs in two ratio steps (normal "n" und slow "l") worm-drive shaft is case-hardened and ground