Technical terms per letter "W"
Wheel hardening depth: hardening of the crane wheel working face, depends on the wheel diameter and makes from 10 to 40 mm.
Wheel kit (crane wheel assembly) is a mechanism that is completely ready for installation on the crane, consisting of a wheel, shaft, bearings, boxes and covers
Winch is a mechanism that transfers its pulling force from a drive drum through a rope, chain, cable or other flexible element.
Worm drive is a mechanism for transmitting rotation between shafts by means of a screw (worm) and an engaged worm wheel.
Worm reducer is a type of mechanical gearbox where a worm gearbox is used and the axis of the driving and driven shafts intersect in plane.
Worm screw (mech.) is a toothed wheel in the shape of a screw for transmitting motion in the worm gearboxes.
Worm wheel is a gear wheel with teeth of a special shape corresponding to the worm that sets it in motion.