PRIVACY & LIMITATIONS

Rotor ledgers stay local. No rotating equipment is connected.

Speed, part mass, and radii are used only for inertia and energy calculations in the current browser. FlywheelLab connects to no motor, drive, bearing monitor, CAD/FEA, or test rig and sends no start, stop, or speed commands.

Rigid-body energy ledger, not safe-speed analysis

The tool uses ideal disk, annulus, and thin-rim equations only for inertia, angular momentum, and kinetic energy. It does not calculate material stress, burst speed, concentration, cracks, fatigue, joints, interference fits, shaft, bearings, critical speed, gyroscopic loads, imbalance, vacuum loss, heat, overspeed protection, or containment; inverted mass is not a manufacturable geometry.

High-speed flywheels can be lethal

Any physical flywheel requires qualified engineering for materials, structure, rotor dynamics, overspeed, and fragment containment, plus remote, isolated, approved testing. CSV is only a calculation ledger, never permission to operate.

Advertising and local preferences

This page uses Google AdSense Auto Ads. Google may use cookies or similar technologies under its policies. .miluland.com domain cookies sync language, theme, high contrast, a six-item recent-tools list, and up to 16 favorite tool IDs across MiluLand sites. These values never contain inputs, files, or results; the current site also keeps a local compatibility copy.

Local report studio

The report studio reads only the workbench’s currently visible result summary for local preview, Markdown copy, JSON download, printing, and a SHA-256 fingerprint. It never reads input controls or original files and is not persisted unless you choose to download it.

Optional local checkpoints

Only when you explicitly choose Save does the tool write the visible result summary, time, and optional short label to this site’s browser storage, up to five entries. Imported files and input-control contents are never stored; you can export, restore same-tool checkpoints, or clear them at any time. Imports are limited to 128KB and validate the tool, timestamp, summary, and label of up to 80 characters.