Pulley & sprocket generator
Generate a timing-belt pulley or roller-chain sprocket
A timing-belt pulley (GT2 or HTD, with optional guide flanges) or a roller-chain sprocket (ANSI #25–#60). You pick the standard by name, not by pitch, because pitch alone identifies neither a belt nor a chain — #40 and #41 are both 12.7 mm pitch with different roller diameters, and a sprocket cut for one will not seat the other. The name sets pitch, outside diameter, groove depth and roller seat together. Download a print-ready STL or 3MF.
How the Pulley & sprocket generator works
What you can adjust
- Type — Timing pulley · Sprocket
- Belt profile — GT2-2M · GT2-3M · GT2-5M · HTD-3M
- Chain size — #25 · #35 · #40 · #41
- Teeth — 8–120
- Bore Ø
- Width — 1–40
- Guide flanges