Gearbox design platform · Beta
Design with every number accounted for
From a single specification to gear train sizing, rating, layout, bearings, shafts and casing — in one project. Every calculation follows ISO/DIN procedures, and every factor appears in the report with its name, unit and origin.
How Evoluta works
Standards, verbatim
The implementation is checked equation-by-equation against the source documents: the full ISO 6336 Method B procedure, every DIN 743 factor, VDI 2230 R0–R13 — the standard's equations, not shortcuts.
The drawing is the model
The canvas is a true-scale drawing that is also the calculation model. Drag a shaft and the layout changes; the new layout re-runs rating, bearing life and shaft deflection. No separate picture and calculation.
The report is the product
Not just symbols and results: every factor carries its name, unit, intermediate values and the clause it comes from — a report a reviewer can follow by hand.
What's inside
During the beta, signing up unlocks everything.
Integrated design
A true-scale drawing that is the calculation model — drag a shaft and rating (ISO 6336), bearing life (ISO 281), shaft deflection and the contact pattern (LTCA) recompute. 3D, section cuts, deflection view; details open in the specialist tools docked alongside. Edits are auto-saved.
Enter power, speed and target ratio — a full draft (gear train sizing, bearings, layout) appears right on the canvas. Same engine, same report.
Gears
Dimensions, DIN 3967 backlash, inspection dimensions (over pins, span), plus hob / form-wheel generation simulation for the real tooth form down to root and chamfer.
Assembly and adjacency checks, profile-shift inversion, tip-clearance verdicts, mesh animation.
SH and SF, full Method B — load factors, ISO 6336-5 allowable stresses, S-N life interpolation.
Epitrochoid profile, pin contact stress, crank bearing life (ISO 281 / TS 16281).
Shafts & connections
Static and fatigue safety with shoulder, keyway and snap-ring notches — the complete factor procedure.
Shrink-fit pressure, transmissible torque, assembly temperature and parallel-key bearing stress in one flow — the key carries what friction cannot.
Geometry, tolerances, inspection and shear/wear/burst torque capacity — standard series and free geometry on the same screen.
Preload, stress, slip, fatigue, tightening torque — the full R0–R13 procedure.
System & operation
Heat balance of losses and dissipation — thermal power rating and predicted equilibrium oil temperature.
Required flow from heat at each point, then a 1-D network solve for the actual distribution.
Drainability of housing drain holes, judged in millimetres of head.
Shaft critical speeds against mesh and bearing excitation on a Campbell diagram — resonance screening and frequency diagnosis.
Permissible residual unbalance per quality grade, correction-plane allocation, influence-coefficient field balancing.
Standards we follow
How we verify
We never just write “checked” — a verification you cannot reproduce is not a verification. Every item records what was compared, against what, and how.
Against the source text
Formulas are compared term by term against the standard's clauses. Example: ISO 6336-1 tooth stiffness c′ — all nine Table 13 coefficients match to every digit.
Against closed-form solutions
Where an analytical solution exists, the numerical result is compared directly. Example: Timoshenko beam mid-span deflection — 0.000 % deviation.
Against invariants
Relations that must hold regardless of implementation — units, limits, monotonicity — are enforced by automated tests.
Currently in beta
During the beta, everything is free after sign-up — verify your e-mail and start. Note: the application UI is currently in Korean; an English interface is on the roadmap. The calculations and reports follow international standards regardless of language. When paid plans arrive we will announce in advance, and projects and reports created during the beta will be preserved.
Calculations on this platform assist design review; final engineering judgement remains the designer's responsibility.
Start designing
Sign up → verify e-mail → start. Nothing to install.