Torque Required to Raise Load Calculator

This mechanical engineering calculator is used to calculate torque required to raise load (TR) for square thread power transmission.


Torque required to raise load Formula:

TR = Fdm2 × ( L + (π μ dm) )(πdm - μ L) + (Fμc dc)2


TR - torque required to raise load in N.m

F - load in newton

dm - mean diameter of square thread


dm = d - p2

dc - mean collar diameter

l - square thread pitch distance in mm

μ - coefficient of friction for thread

μc - coefficient of friction for collar

π - 3.14159