; The screw shaft snaps. Excel App. This calculator will calculate torque given the lead screw parameters and the required force. Engineering News See the instructions within the documentation for more details on performing this analysis. document.write(' ') }, Fastener and Screw / Bolt Design Formula Design Data Sometimes an approximate method is good enough. | Feedback | Advertising Linear Force Calculate how much linear force a lead screw or ball screw can produce given the torque of a motor, the lead or ball screw efficiency, and pitch. ME EN 7960 – Precision Machine Design – Ball Screw Calculations 4-9 Fixed-Free Mount Source: THK Co., Ltd. Engineering Calculators // -->, Bolt Preload Tension Equation and Calculator, Torque vs Tension Bolts Table Chart SAE J429 Bolts, GD&T Training Geometric Dimensioning Tolerancing. In the event your use of this calculator results in the need for servicing, repair or correction of equipment or data, you assume any costs or expense for such needs. See table below for how much clamping force is available from manual clamp straps of various sizes (with a 2-to-1 clamping-force ratio) to compare with power-clamp forces. If the load on a screw jack is 50000 lb, the lever-arm is 20 inches and the pitch equals 1/8 inches - the effort force can be estimated to F = ((50000 lb) (1/8 in)) / (2 π (20 in)) = 49.8 lb The torque acting on the screw can be calculated For standard bolt torques use 0. As well as being able to apply or withstand high thrust loads, they can do so with minimum internal friction.