; Torque of Motor (oz-in): Imperial UN: (Imperial Unified National thread form) A standard that describes the shape of an internal or external thread using imperial inch dimensions. © Copyright 2019 Daycounter, Inc. All rights Reserved. Once the torque is calculated an appropriate stepper can be selected. 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. Radius R=4 mm=0.004m 3. }, Fastener and Screw / Bolt Design Formula Design Data Advertising Center Excel App. Connection Calculator Provides users with a web-based approach to calculating capacities for single bolts, nails, lag screws and wood screws per the 2015 NDS . else 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. Calculated values do not compensate for materials stiffness. There are two torques the torque to raise the load and the torque to lower the // --> Axial Bolt "Clamp" Force Thus, the following calculations for the buckling load and the permissible compressive and tensile load of the screw shaft are performed while assuming a screw shaft diameter of 20 mm and a lead of 20 mm. View Profile View Forum Posts Visit Homepage Diamond Join Date Dec 2003 Country UNITED STATES State/Province Washington Posts 4,994 Post Thanks / … Fastener, Bolt and Screw Design Torque and Force Calculations: ISO Hardware Engineering Data ANSI Hardware Engineering Data Hardware Supplier Manufacturer Strength of Materials . There are two torques the torque to raise the load and the torque to lower the load. Ball Screw Home Page. Formula for torque to raise the load, Calculate the forces acting on the bolted joint using our Bolt Pattern Force Distribution Calculator.