presuming you mean the lead screw on a lathe, used when cutting threads on the workpiece, then the screw itself is obviously fixed, but the rotation of it may be able to be changed, depending on the lathe manufacturer.
Linear and rotational
Yes. Totally reversible.
A screw picker is a small tool used to handle small screws during small intricate repairs. The screw picker has a small claw that can be extended and grasp the small screw to twist it in place.
symbol for screw down non return valve
The pozidrive screw is a modified phillips head screw that can be used in almost any application. It has 4 additional cuts in the head and it takes a special tool to remove them although a regular phillips head screwdriver will work if they are not very tight.
Screw jack is a non reversible machine,as it does not return to its original position even after the load is applied
Examples are Screwing in a screw - Unscrewing a screw Opening a door - Closing a door etc. Hope this helps
screw
The lead of a screw refers to the distance a screw advances in one complete turn. It is determined by the screw's pitch, which is the distance between corresponding points on adjacent threads. A screw with a larger lead will advance more with each turn compared to one with a smaller lead.
when lead of the screw is equal to the pitch it is called single threaded screw
The lead screw moves the turret by a precise increment for every rotation of the screw. This allows the machine to generate threads in a workpiece, to generate precise length and diameter dimensions, and to maintain a constant rate of metal removal.
Sometimes the propeller on a boat is called a screw & they used to be made of lead. So they would be found at the end of the propeller shaft.
what is a leadscrew
The number of revolutions needed to move a screw block 1 inch depends on the screw's lead, which is the distance the screw moves linearly with one full revolution of the crank. For instance, if the screw has a lead of 0.1 inches, it would take 10 revolutions to move the block 1 inch. To determine the exact number of revolutions, you would divide 1 inch by the lead of the screw.
Tranylcypromine (a reversible MAOIs). This drug can lead to insomnia and agitation.
Yes, this change is reversible.
This is a reversible process.