MP-46 · SPRINGS AND DYNAMICS
Extension Spring Screen
Calculate an extension-spring force proxy from initial tension, entered rate, and extension.
Preliminary design support. Your inputs and results stay in this browser.
WHAT THIS SCREEN ANSWERS
Extension springs often have initial tension, so force does not begin at zero when extension begins. The engine combines entered initial tension and linear rate with extension to show a preliminary force. Use the visible relationship before moving to catalog selection.
Hook geometry, fatigue, coil contact, side load, surge, and manufacturing variation can govern a real spring. Confirm exact spring data, hook style, stress, fatigue, installation, travel, and supplier limitations. That limitation can move the governing case.
Extension springs often have initial tension, so force does not begin at zero when extension begins. Hook geometry, fatigue, coil contact, side load, surge, and manufacturing variation can govern a real spring. Compare alternatives on the same basis before treating one as preferable.
The engine combines entered initial tension and linear rate with extension to show a preliminary force. Confirm exact spring data, hook style, stress, fatigue, installation, travel, and supplier limitations. The decision remains specific to this application because extension springs often have initial tension, so force does not begin at zero when extension begins. Separate a promising indication from a component selection.