Nook Screw Jacks

ActionJac™ Worm Gear Screw Jack systems are ruggedly
designed and produced in standard models with load
handling capacities from 1⁄4 ton to 100 tons. They may be
used individually or in multiple arrangements. There are no
“standard” travel lengths and each Worm Gear Screw Jack is
built to specification.
The jack housings are made of ductile iron and proportioned to
support the rated capacity of the unit. MJ, 1⁄4 ton, and 1⁄2 ton
models have aluminum housings.
Each ActionJac™ Worm Gear Screw Jack incorporates an
alloy steel worm which drives a high strength bronze worm
gear (drive sleeve). The worm shaft is supported on antifriction tapered roller bearings with external seals provided to
prevent loss of lubrication (sealed radial bearings on the MJ,
1⁄4 , 1⁄2, and 1 ton units). The drive sleeve is supported on
antifriction tapered roller or ball thrust bearings. Rotation of
the drive sleeve causes the lifting screw to translate or rotate,
depending upon jack configuration.
Special finishes available; including epoxy, for outdoor, marine or according to other possible customer requirements.