Recent Blogs
V-grooved Rope Pulley: Ideal Groove-reaction Geometry
Compare ideal symmetric flank reactions for an entered V-groove angle. Clearance and wrap are displayed separately; traction, slip and drive capacity are not calculated.
Internal Spur Gear and Pinion: Pitch Geometry Calculator | FIRGELLI
Calculate ideal fixed-axis internal gear ratio, center distance and same-direction ring speed. Tooth interference, capacity and planetary motion are not calculated.
Belt Drive Power Transmission: Speed Ratio, Torque and Power
Compare two pulleys using effective diameters, driver speed and torque. Apply an entered efficiency to power while retaining the ideal no-slip speed ratio.
Registering Dynamometer Mechanism Explained: How It Works, Parts, Diagram, Formula and Uses
Calculate mean torque, work per load cycle and mean power for two repeating torque levels at constant shaft RPM, with a schematic mechanical recorder.
Over-and-Over Belt Lacing: Historical Path Geometry
Explore the over-and-over belt-lacing route. Calculate hole count, row span, segment count and ideal planar path length from paired holes, pitch and gap.
Cross Lacing Mechanism Explained: Figure-8 Flat Belt Drive, Wrap Angle and Capstan Formula
Compare limiting belt tension ratios for crossed and open contact cases using friction and entered wrap angles. This tool does not size the lacing that...
Worm Gear: Animation and Ideal Reduction Calculator
Calculate ideal worm-wheel reduction, wheel angle and tooth advance from wheel tooth count and worm starts. Efficiency and self-locking are not calculated.