Recent Blogs
Bell-crank with Connecting Rod Mechanism: How It Works, Parts, Uses & Calculator
Bell-crank with connecting rod explained — how the right-angle linkage redirects motion, sizing math, and worked examples from aerospace flight controls.
Bell Crank Transmission: Ideal Force and Arc-travel Calculator
Explore a rigid bell crank. Compare ideal tangential force ratio and circular pin travel from two arm lengths and a shared rotation angle.
Studded Disk and Bell Crank: Alternating Motion Calculator | FIRGELLI
Explore a studded disk driving a bell crank with a weighted-cord return. Calculate event timing, ideal cord tension and counterweight moment.
Bell-crank with Weighted Cord and Pulley Mechanism: How It Works, Parts, Formula, and Uses
Bell-crank with weighted cord and pulley explained — how the linkage converts gravity into linear pull for gates, signals, and theatre rigging. Formula and worked...
Bell-crank Lever (changing Direction of Force): Mechanism, Diagram, Animation & Calculator Explained
Bell-crank lever explained: how this 90° force-redirecting linkage works, with formulas, worked examples, and real uses in aircraft controls and machinery.
Bell-Crank Toe Levers: Declared Contact Layout
Explore two contacting bell-crank toe levers. Calculate combined reach, nominal overlap and output-tip arc lengths from pivot spacing, projection and swing.
Lens-grinding Machine: Historical Motion and Ideal Radius Geometry
A historical lens-grinding bell-crank animation beside a separate ideal tilted-axis calculator for radius, curvature and local angle sensitivity.
Engine Bell Crank: Ideal Right-angle Lever Calculator
Compare moment balance, arm ratio and pivot reaction for an ideal bell crank with perpendicular arms and forces. The calculator does not solve a complete...