Sprockline

Belts, chains and shaft loads

Purpose-Built

Mechanical drive studio for roller chains, sprockets, V-belts, timing belts, center distance, wrap angle, speed ratio, chain length, service factor, and shaft loads.

Core Features

Chain-drive ratio and geometry
Length and shaft-load screen
Driver-tooth sensitivity
Local installation evidence

Private by Design

No account, subscription, ads, tracking, third-party analytics, or developer-operated backend. Core features work offline, and your work stays on device unless you deliberately share or export it.

Use It Responsibly

Drive calculations are planning estimates. Confirm manufacturer ratings, shock factors, alignment, lubrication, guards, shaft loads, service environment, and machine safety.