Torsion Spring Calculator: Torque, Angular Deflection & Wire Stress
Torsion Spring Calculator — torque at deflection, angular spring rate, and wire bending stress for helical torsion springs. Includes leg configuration tips and 8 FAQ.
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Spring Rate Calculator: Compression Spring Stiffness, Wire Stress & Coil Count
Spring Rate Calculator — compression spring stiffness, wire stress at solid height, and active coil count. Includes Wahl factor correction and 8 FAQ.
Tolerance Stack-Up Calculator: RSS, Worst-Case & Statistical Analysis
Tolerance Stack-Up Calculator — RSS and worst-case analysis for assembly gaps, interference, and statistical variation. Includes worked examples and 8 FAQ.
Bearing Life Calculator: L10 Life, Dynamic Load & Reliability
Bearing Life Calculator — L10 life in millions of revolutions and hours using ISO 281. Includes dynamic load rating, reliability adjustment, and 8 FAQ.
Journal Bearing Calculator: Sommerfeld Number, Oil Film & Friction
Journal Bearing Calculator — Sommerfeld number, minimum oil film thickness, eccentricity ratio, and friction coefficient for hydrodynamic bearings. Includes formulas and 8 FAQ.
Key & Keyway Stress Calculator: Shear, Crushing & Safety Factor
Key & Keyway Stress Calculator — shear stress, crushing stress, and safety factor for parallel keys, Woodruff keys, and tapered keys. Includes worked example and 8 FAQ.
Shaft Deflection Calculator: Beam Deflection, Slope & Stiffness
Shaft Deflection Calculator — beam deflection, slope, and stiffness for simply supported, cantilever, and overhung shafts. Includes worked examples and 8 FAQ.
Shaft Stress Calculator: Bending, Torsion & Combined von Mises Stress
Shaft Stress Calculator — bending, torsional, and von Mises combined stress for rotating shafts. Includes formula explanation, common mistakes, and 8 FAQ.
Timing Belt Calculator: Pulley Teeth, Belt Length & Center Distance
Timing Belt Calculator — pulley tooth ratio, belt length in teeth, and exact center distance for HTD, GT2, T-series synchronous belts. Includes worked example and 8 FAQ.
Worm Gear Efficiency Calculator: Ratio, Torque & Self-Locking
Worm Gear Efficiency Calculator — ratio, output torque with efficiency losses, and self-locking check. Includes formula explanation, common mistakes, and 8 FAQ.