Mechanisms — spur gear

Recent Blogs

Gear Train diagram
Compound Gear Train: Two-Stage Ratio and Speed Calculator | FIRGELLI
Calculate stage ratios, total ratio and ideal output speed for two external gear pairs linked by a common intermediate shaft. Includes examples and animation.
Spur Gears diagram
Spur Gears Mechanism Explained: How They Work, Parts, Diagram, Formula and Uses
Explore spur-gear motion and compare tooth-count ratios, output speed and ideal torque multiplication, with reference dimensions and a worked 5:1 example.
Disk-wheel and Spur Gear (rotary at Right Angles) diagram
Disk-wheel and Spur Gear (rotary at Right Angles): How the Right-Angle Mechanism Works
Explore a single-start face-spiral disk driving a perpendicular spur wheel. Calculate reduction, output speed and steady torque and power-loss estimates.
Crown Wheel and Spur Gear diagram
Crown Wheel and Spur Gear Mechanism: How It Works, Parts, Diagram and Right-Angle Drive Uses
Explore a crown wheel and perpendicular spur pinion. Calculate output speed, torque and power loss from tooth counts, input speed, torque and assumed efficiency.