m1 · 12 teeth
- Pitch diameter
- 12 mm
- Outside diameter
- 14 mm
- Model root diameter
- 9.5 mm
More dimensions
- Base diameter
- 11.276 mm
- Circular pitch
- 3.142 mm
- Module
- 1 mm
- Teeth
- 12
VALICALC · TECHNICAL REFERENCE
Spur Gear Dimensions Reference
Compare a grid of standard unshifted spur-gear dimensions. The selected model and pressure angle stay visible beside every derived result.
SCENARIO MATRIX
Search within the verified subset. Numeric sizes match complete designations; a nearby size is a candidate, not an exact match.
SELECTED REFERENCE
m2 · 20 teeth
- Pitch diameter
- 40 mm
- Outside diameter
- 44 mm
- Model root diameter
- 35 mm
All fields & cell provenance
- Base diameter
- 37.588 mm
- Circular pitch
- 6.283 mm
- Module
- 2 mm
- Teeth
- 20
- Module / tooth count: KHK calculation of gear dimensions — Generated standard full-depth unshifted20° model / module 2 teeth 20 · verified 2026-10-06 · source value m2 · 20 teeth.
- Pitch diameter: KHK calculation of gear dimensions — Generated standard full-depth unshifted20° model / module 2 teeth 20 · verified 2026-10-06.
- Outside diameter: KHK calculation of gear dimensions — Generated standard full-depth unshifted20° model / module 2 teeth 20 · verified 2026-10-06.
- Model root diameter: KHK calculation of gear dimensions — Generated standard full-depth unshifted20° model / module 2 teeth 20 · verified 2026-10-06.
- Base diameter: KHK calculation of gear dimensions — Generated standard full-depth unshifted20° model / module 2 teeth 20 · verified 2026-10-06.
- Circular pitch: KHK calculation of gear dimensions — Generated standard full-depth unshifted20° model / module 2 teeth 20 · verified 2026-10-06.
- Module: KHK calculation of gear dimensions — Generated standard full-depth unshifted20° model / module 2 teeth 20 · verified 2026-10-06 · source value 2.
- Teeth: KHK calculation of gear dimensions — Generated standard full-depth unshifted20° model / module 2 teeth 20 · verified 2026-10-06 · source value 20.
v1.1.0 · verified 2026-10-06 · values use the valid conditions shown above
m2 · 20 teeth40 mmBack to answer ↑
Explore the verified data
56 matching rows · 56 in this subset
| Module / tooth count | Pitch diameter | Outside diameter | Model root diameter | Actions |
|---|---|---|---|---|
| m1 · 12 teeth | 12 mm | 14 mm | 9.5 mm | |
| m1 · 16 teeth | 16 mm | 18 mm | 13.5 mm | |
| m1.5 · 12 teeth | 18 mm | 21 mm | 14.25 mm | |
| m1 · 20 teeth | 20 mm | 22 mm | 17.5 mm | |
| m1 · 24 teeth | 24 mm | 26 mm | 21.5 mm | |
| m1.5 · 16 teeth | 24 mm | 27 mm | 20.25 mm | |
| m2 · 12 teeth | 24 mm | 28 mm | 19 mm | |
| m1 · 30 teeth | 30 mm | 32 mm | 27.5 mm | |
| m1.5 · 20 teeth | 30 mm | 33 mm | 26.25 mm | |
| m2.5 · 12 teeth | 30 mm | 35 mm | 23.75 mm | |
| m2 · 16 teeth | 32 mm | 36 mm | 27 mm | |
| m1.5 · 24 teeth | 36 mm | 39 mm | 32.25 mm | |
| m3 · 12 teeth | 36 mm | 42 mm | 28.5 mm | |
| m1 · 40 teeth | 40 mm | 42 mm | 37.5 mm | |
| m2 · 20 teeth | 40 mm | 44 mm | 35 mm | |
| m2.5 · 16 teeth | 40 mm | 45 mm | 33.75 mm | |
| m1.5 · 30 teeth | 45 mm | 48 mm | 41.25 mm | |
| m2 · 24 teeth | 48 mm | 52 mm | 43 mm | |
| m3 · 16 teeth | 48 mm | 54 mm | 40.5 mm | |
| m4 · 12 teeth | 48 mm | 56 mm | 38 mm |
m1 · 16 teeth
- Pitch diameter
- 16 mm
- Outside diameter
- 18 mm
- Model root diameter
- 13.5 mm
More dimensions
- Base diameter
- 15.035 mm
- Circular pitch
- 3.142 mm
- Module
- 1 mm
- Teeth
- 16
m1.5 · 12 teeth
- Pitch diameter
- 18 mm
- Outside diameter
- 21 mm
- Model root diameter
- 14.25 mm
More dimensions
- Base diameter
- 16.914 mm
- Circular pitch
- 4.712 mm
- Module
- 1.5 mm
- Teeth
- 12
m1 · 20 teeth
- Pitch diameter
- 20 mm
- Outside diameter
- 22 mm
- Model root diameter
- 17.5 mm
More dimensions
- Base diameter
- 18.794 mm
- Circular pitch
- 3.142 mm
- Module
- 1 mm
- Teeth
- 20
m1 · 24 teeth
- Pitch diameter
- 24 mm
- Outside diameter
- 26 mm
- Model root diameter
- 21.5 mm
More dimensions
- Base diameter
- 22.553 mm
- Circular pitch
- 3.142 mm
- Module
- 1 mm
- Teeth
- 24
m1.5 · 16 teeth
- Pitch diameter
- 24 mm
- Outside diameter
- 27 mm
- Model root diameter
- 20.25 mm
More dimensions
- Base diameter
- 22.553 mm
- Circular pitch
- 4.712 mm
- Module
- 1.5 mm
- Teeth
- 16
m2 · 12 teeth
- Pitch diameter
- 24 mm
- Outside diameter
- 28 mm
- Model root diameter
- 19 mm
More dimensions
- Base diameter
- 22.553 mm
- Circular pitch
- 6.283 mm
- Module
- 2 mm
- Teeth
- 12
m1 · 30 teeth
- Pitch diameter
- 30 mm
- Outside diameter
- 32 mm
- Model root diameter
- 27.5 mm
More dimensions
- Base diameter
- 28.191 mm
- Circular pitch
- 3.142 mm
- Module
- 1 mm
- Teeth
- 30
m1.5 · 20 teeth
- Pitch diameter
- 30 mm
- Outside diameter
- 33 mm
- Model root diameter
- 26.25 mm
More dimensions
- Base diameter
- 28.191 mm
- Circular pitch
- 4.712 mm
- Module
- 1.5 mm
- Teeth
- 20
m2.5 · 12 teeth
- Pitch diameter
- 30 mm
- Outside diameter
- 35 mm
- Model root diameter
- 23.75 mm
More dimensions
- Base diameter
- 28.191 mm
- Circular pitch
- 7.854 mm
- Module
- 2.5 mm
- Teeth
- 12
m2 · 16 teeth
- Pitch diameter
- 32 mm
- Outside diameter
- 36 mm
- Model root diameter
- 27 mm
More dimensions
- Base diameter
- 30.07 mm
- Circular pitch
- 6.283 mm
- Module
- 2 mm
- Teeth
- 16
m1.5 · 24 teeth
- Pitch diameter
- 36 mm
- Outside diameter
- 39 mm
- Model root diameter
- 32.25 mm
More dimensions
- Base diameter
- 33.829 mm
- Circular pitch
- 4.712 mm
- Module
- 1.5 mm
- Teeth
- 24
m3 · 12 teeth
- Pitch diameter
- 36 mm
- Outside diameter
- 42 mm
- Model root diameter
- 28.5 mm
More dimensions
- Base diameter
- 33.829 mm
- Circular pitch
- 9.425 mm
- Module
- 3 mm
- Teeth
- 12
m1 · 40 teeth
- Pitch diameter
- 40 mm
- Outside diameter
- 42 mm
- Model root diameter
- 37.5 mm
More dimensions
- Base diameter
- 37.588 mm
- Circular pitch
- 3.142 mm
- Module
- 1 mm
- Teeth
- 40
m2 · 20 teeth
- Pitch diameter
- 40 mm
- Outside diameter
- 44 mm
- Model root diameter
- 35 mm
More dimensions
- Base diameter
- 37.588 mm
- Circular pitch
- 6.283 mm
- Module
- 2 mm
- Teeth
- 20
m2.5 · 16 teeth
- Pitch diameter
- 40 mm
- Outside diameter
- 45 mm
- Model root diameter
- 33.75 mm
More dimensions
- Base diameter
- 37.588 mm
- Circular pitch
- 7.854 mm
- Module
- 2.5 mm
- Teeth
- 16
m1.5 · 30 teeth
- Pitch diameter
- 45 mm
- Outside diameter
- 48 mm
- Model root diameter
- 41.25 mm
More dimensions
- Base diameter
- 42.286 mm
- Circular pitch
- 4.712 mm
- Module
- 1.5 mm
- Teeth
- 30
m2 · 24 teeth
- Pitch diameter
- 48 mm
- Outside diameter
- 52 mm
- Model root diameter
- 43 mm
More dimensions
- Base diameter
- 45.105 mm
- Circular pitch
- 6.283 mm
- Module
- 2 mm
- Teeth
- 24
m3 · 16 teeth
- Pitch diameter
- 48 mm
- Outside diameter
- 54 mm
- Model root diameter
- 40.5 mm
More dimensions
- Base diameter
- 45.105 mm
- Circular pitch
- 9.425 mm
- Module
- 3 mm
- Teeth
- 16
m4 · 12 teeth
- Pitch diameter
- 48 mm
- Outside diameter
- 56 mm
- Model root diameter
- 38 mm
More dimensions
- Base diameter
- 45.105 mm
- Circular pitch
- 12.566 mm
- Module
- 4 mm
- Teeth
- 12
How to use this data
Use the declared zero-profile-shift standard full-depth model. Other tooth systems are not silently substituted; custom solves remain in the existing gear calculators.
- d=mz; da=m(z+2); df=m(z−2.5); db=dcos 20°. The root circle is model-specific.
CHECK THE METHOD
Worked example
m2,z 20: pitch 40 mm, outside 44 mm, model root 35 mm, base 37.587705 mm.
Related calculators
Continue the reference workflow
Common lookup questions
Does the grid cover profile-shifted gears?
No. Profile shift and other tooth systems need their own explicitly supported model.
TRACEABLE DATA
Sources, scope & verification
Dataset v1.1.0
Last verified:
56 generated module/tooth combinations, standard full-depth unshifted 20° spur model.
Values are curated product facts or generated scenarios. Paid standards, complete catalogs and source diagrams are not reproduced. A verification date applies to this documented subset.
KHK calculation of gear dimensions ↗
Type A · KHK · web revision not stated
Original equations and generated scenario values; no copied reference table.
Full provenance & artifact record
- Source checked
- 2026-10-06
- Use basis
- authored-formula
- Artifact SHA-256
- 55d5b5f18fe2559fc17ca1c1241b804602fd4eddd81a73dfe1b96b4c14d13ecf