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. | Contact, Home Axial Load (N) Lead (mm) Preload Reset Calculate. | Feedback | Advertising The following are to links of engineering resources, tools, articles and other useful data. T = F1 x D/2, where: Your first equation, for effort, is Feffort=Sf+Load2∗π∗(RP)∗Se where, 1. Use at your own risk. This calculator will calculate torque given the lead screw INSTRUCTIONS: Choose units and enter the following: Leadscrew Square Thread (d m) This is the mean thread diameter (d c) This is the mean collar diameter (l) This is the lead (F) This is the load This is can be dependent on a number of factors, but is largely a function of the preload force, the force exerted in compressing the bolt, and the tension force, the force exerted in pulling the bolt apart. The force acting in the lubricated bolt can be calculated as. Torque = Force x Distance = (Rotational Force acting on a ball bearing) x (radius of ballscrew) So you can calculate the rotational vector component of force based on torque and the radius of the ballscrew. This calculator will calculate torque given the lead screw parameters and the required force. Screw Efficiency, from linked article, worst case scenario 20 %, Se=20=0.2 So filling in the numbers, for 25 N: effort=20+252∗π∗(0.0040.00125)∗0.2effort=26.22 It is worth noting that this running tor… document.write(''); µ = Coefficient of friction, between the screw threads and the stand threads.. As discussed earlier, since the calculations involved with a screw jack is similar and can be compared to that of an inclined plane, we can consider the external applied force to be horizontal. 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. Strength of Materials. Downloads // --> Inexpensive but only applicable for short ball screws and/or slow speeds. I accept the terms and conditions set forth above. document.write(' ') to try and figure out the size of motor needed to drive a given force with a parameters and the required force. GD&T Training Geometric Dimensioning Tolerancing Need More Functionality? Standard Non-Structural Bolts. Imperial UN: (Imperial Unified National thread form) A standard that describes the shape of an internal or external thread using imperial inch dimensions. B 513E lead screw. Starting Force, from linked article, worst case scenario, Sf=20N 2. Then you calculate the total area the force would be applied against (the screw shaft area for tension or the combine area of thread contact for shear). A ball screw is a mechanical linear actuator that translates rotational motion to linear motion with little friction. Sometimes an approximate method is good enough. Screw Thread Design Screw Thread Fundamentals A screw thread is defined as a ridge of uniform section in the form of a helix on either the external or internal surface of a cylinder. There is a simple formula to calculate the linear force from an applied torque but you first need to understand the concepts behind it. There is no guarantee for any information on this website. 4950 East 49th Street, Cleveland, Ohio 44125. This Calculator Requires a JAVA enabled browser to function properly.