Screw drive elevators are a type of elevator. There is a threaded bar, attached to a motor, going the height of the elevator. There is also a threaded part attached to the elevator. When the motor spins, the elevator moves. This drive system is usually seen on wheelchair lifts.
|Elevator drive systems|
|Traction • M.R.L. • Winding Drum • Hydraulic (Oildraulic)|
|Reference: hkelev - Elevator drive systems
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