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Engineering Tools

Online calculators for mechanical engineering — no registration, no installation, run directly in your browser.

Free of charge
No registration required
With formula derivation

Available Calculators

6 ready to use · 0 in development

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Torque Calculator

Calculate drive torque from power and speed — or vice versa. With formula derivation and unit selection.

M = P × 9550 / nkW → NmMotor selection
Calculate now
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Gear Ratio Calculator

Calculate output speed and output torque from input values and gear ratio.

i = n₁/n₂M₂ = M₁ × i × ηGearbox selection
Calculate now
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Bearing Life L10

Calculate nominal rolling bearing service life per ISO 281 — with dynamic load rating, load, and speed.

L10 hoursISO 281Ball & roller bearings
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Linear Guide Sizing

Determine static load capacity and safety factor for profiled rail guides.

Static loadC₀/P₀Profiled rail
Calculate now
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Spindle Jack Sizing

Determine axial force, travel speed, and motor torque for screw jack gearboxes.

Axial force [kN]Travel speedScrew Jack
Calculate now
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Moment of Inertia Calculator

Calculate mass moment of inertia J for cylinders, discs, cuboids, spheres and ball screws — with reduction to motor shaft and J-ratio traffic light for servo design.

J [kg·m²]J_load / J_motorServo sizing
Calculate now

Want to understand the formulas?

Our guide articles explain the background — from torque calculation to bearing selection.

To the guide →

Notice: The calculation tools provided are intended for initial orientation only and do not replace binding engineering design by qualified specialists. All results must be verified by appropriate engineering calculations before use in safety-critical applications. Technische Antriebselemente GmbH accepts no liability for damages arising from the use of the calculation results.

+49 [40] 5388921-11 sales@tea-hamburg.de