Recent Blogs
Three-pulley Two-speed Drive: Ideal Speed and Torque Ratios
Compare two stepped-pulley speed ratios and reciprocal lossless torque ratios. The schematic idler redirects the belt; belt fit, tension and shifting are not calculated.
Modified Cone Pulleys: Exact Open-Belt Length
Compare four opposed stepped-pulley pairs and calculate exact ideal open-belt lengths and their spread at a shared shaft center distance.
Belt Transmission: Ideal Speed and Efficiency-adjusted Torque
Calculate no-slip belt speed ratio and output speed from pitch radii. Compare torque using an entered efficiency; traction, sheave adjustment and drive capacity are not...
Horse-power Machine: Historical Platform and Gear-Ratio Exercise | FIRGELLI
Read about Hiscox’s chain-and-platform machine and use a separate external-gear calculator for speed, ideal torque ratio and output period. No power or workload is predicted.
Variable-speed Relation: Ideal Pitch-radius Calculator
Compare two effective pitch radii to calculate ideal output speed, percentage change and reciprocal torque factor. The open-belt illustration does not design gear teeth or...
Variable Sectional Motion: Two-interval Speed Comparison
Define two ideal speed intervals and compare their radius-derived speeds and angularly weighted average. The tool does not design sectional gears or transitions between speeds.
Variable-speed Belt Drive: Ideal Ratio, Speed and Torque
Calculate an ideal belt-drive ratio from effective pitch diameters, plus output speed, pitch-line speed and torque from assumed transmitted power. Belt selection and sheave actuation...