Mechanisms — rotary to linear motion

Recent Blogs

Cam Between Yoke Friction-rollers (valve) diagram
Cam Between Yoke Friction-rollers (valve) Mechanism Explained: How It Works, Parts, Diagram & Uses
Explore an irregular cam between opposed rollers in a guided yoke. Compare roller-centre spans, allowance and cycle period, with clearance and interference previews.
Beveled Disk Cam to Rod diagram
Beveled Disk Cam to Rod Mechanism: How It Works, Diagram, Formula, and Uses Explained
Explore a rotating inclined disk driving a guided axial rod. Calculate stroke, peak velocity and acceleration from contact-track diameter, inclination and shaft speed.
Scotch Yoke diagram
Scotch Yoke Mechanism: How It Works, Diagram, Formula, Calculator and Uses
Scotch Yoke mechanism explained — how it converts rotary to linear motion, real engineering formulas, applications in valve actuators, pumps and engines.
Rotary and Longitudinal Motion diagram
Rotary and Longitudinal Motion: How It Works, Mechanisms, Formulas, and Real-World Uses Explained
Rotary and longitudinal motion converts spinning input into straight-line output. Learn the mechanisms, formulas, and real machine examples used in automation.
Internal Rack Pinion Reciprocator diagram
Internal Rack Reciprocator: Pitch Speed and Nominal Rate Calculator | FIRGELLI
Calculate metric pinion pitch diameter, pitch-line speed and nominal traverse rates from an entered stroke. Tooth handoff and real cycle dynamics are not solved.
Combination Disk-and-arm Reciprocator diagram
Combination Disk-and-arm Reciprocator Mechanism: How It Works, Parts, Formula and Uses
Explore a rotating disk, rocker arm and guided slider. Change link dimensions to compare output stroke and rightward/leftward travel times at constant crank speed.
Clover-leaf Cam diagram
Clover-leaf Cam: Three-Lobe Opposed-Roller Motion and Travel Calculator
Animate a three-lobe cam between two rollers on one sliding bar. Explore odd-lobe harmonic variants, reciprocation counts and cumulative rise travel.