Tools
Mechanical Engineering Calculators
Reference calculations with visible assumptions, unit handling, and validation.
- Gear Center Distance Calculator
- Gear Module / Diametral Pitch Converter
- Gear Ratio Calculator
- Spur Gear Dimensions Calculator
- Gear Mesh Force Calculator
- Gear Backlash Calculator
- Planetary Gear Ratio Calculator
- Roller Chain Length Calculator
- V-Belt Length / Center Distance Calculator
- Belt Speed / Pulley RPM Calculator
- Pulley Speed Ratio / Driven RPM Calculator
- Timing Belt Length / Center Distance Calculator
- Bearing L10 Basic Rating Life Calculator
- Bearing Equivalent Dynamic Load Calculator
- Bearing Static Safety Factor Calculator
- Bearing Equivalent Static Load Calculator
- Bearing Required Dynamic Load Rating Calculator
- Bearing Variable Duty Equivalent Dynamic Load Calculator
- Shaft Torsional Stress / Angle of Twist Calculator
- Shaft Diameter Calculator — Torsional Stress / Twist
- Shaft Combined Bending and Torsion Calculator
- Shaft Bearing Reactions / Bending Moment Calculator
- Simply Supported Shaft Deflection / Slope Calculator
- Shaft Critical Speed / Whirling Calculator
- Rayleigh Multi-Mass Shaft Critical Speed Calculator
- Dunkerley Multi-Mass Shaft Critical Speed Calculator
- Shaft Key Shear / Bearing Stress Calculator
- Rigid Flange Coupling Bolt Shear Calculator
- Flange Coupling Bolt Bearing and Edge Shear-Out Calculator
- Flange Coupling Bolt Preload and Slip Resistance Calculator
- RPM / Torque / Power Calculator