Xem Studiomeasured geometryLibrary › Hardware › Spur gears, module 3: 10 to 80 teeth
module 3, 22 teeth
module 3, 22 teeth: pitch Ø66, tip Ø72, root Ø58.5, face 24, bore Ø20
Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.
STEP STL free, CC BY 4.0 (credit "Xem Studio")
Dimensions
| teeth | 22 |
|---|---|
| pitch_dia_mm | 66.0 |
| tip_dia_mm | 72.0 |
| root_dia_mm | 58.5 |
| face_mm | 24.0 |
| bore_mm | 20 |
Let your AI pull this. Add
Set it up →https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.From the full sheet
Spur gears, module 3: 10 to 80 teeth (20° involute): every size, notes, mating features and sources. What is the pitch diameter of a module 3 spur gear?
Other sizes
- module 3, 10 teeth
- module 3, 12 teeth
- module 3, 14 teeth
- module 3, 15 teeth
- module 3, 16 teeth
- module 3, 18 teeth
- module 3, 20 teeth
- module 3, 24 teeth
- module 3, 25 teeth
- module 3, 28 teeth
- module 3, 30 teeth
- module 3, 32 teeth
- module 3, 35 teeth
- module 3, 36 teeth
- module 3, 40 teeth
- module 3, 42 teeth
- module 3, 45 teeth
- module 3, 48 teeth
- module 3, 50 teeth
- module 3, 56 teeth
- module 3, 60 teeth
- module 3, 64 teeth
- module 3, 70 teeth
- module 3, 72 teeth
- module 3, 80 teeth