Xem Studiomeasured geometry

Library › Hardware › Mechanism parts ·

Helical gear, normal module 1.5, 16 teeth, helix 45° right hand, face 12, Ø6 bore

What are the dimensions of a 16-tooth, 45° helical gear? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance

Also called: helical gear, oblique tooth gear, helical gear module 1.5, engranaje helicoidal, Schrägstirnrad

Exact dimensions. True size, with no printing tolerance added.

length
36.94 mm
width
36.94 mm
height
12.0 mm

Notes

  • Normal module 1.5, helix angle 45°: transverse module 2.12, transverse pressure angle 27.24°, pitch Ø33.94, tip Ø36.94, root Ø30.19; addendum 1.5, dedendum 1.88 (normal-module depths).
  • The transverse involute is twisted 40.51° over the 12 mm face; two of the same hand mesh on shafts crossed at 2 × 45°.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Helical gear, normal module 1.5, 16 teeth, helix 45° right hand… size chart

dimensionvalue
normal module1.5
teeth16
helix angle45° RH
transverse module2.12
pitch Ø33.94 mm
tip Ø36.94 mm
face12 mm
boreØ6

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Henry T. Brown (1868, public domain)Five Hundred and Seven Mechanical Movements — scan on archive.orgwebPublisher's page; dimensions are facts
507movements.comBrown's movement No. 43: figure, his text and an animationwebPublisher's page; dimensions are facts
Xem StudiodrawingwebPublisher's page; dimensions are facts

Free files

★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

crossed-helical-gear-mn1-5-16t-beta45-rh-bore6gear, axis Z, z 0..12, a tooth on +X at z = 0STEP · STL
Let your AI pull this. Add 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.
Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=crossed-helical-gear-mn1-5-16t-beta45-rh-bore6

Helical gear, normal module 1.5, 16 teeth, helix 45° right hand, face 12, Ø6 bore, isometric render of a generated part
Render of crossed-helical-gear-mn1-5-16t-beta45-rh-bore6 from the free STEP; not to scale.

Fits with

Crossed helical (spiral) gears on shafts at 90°, 16 : 16, isometric render of a generated part
Crossed helical (spiral) gears on shafts at 90°, 16 : 165 sizes★ 1 file

Questions

What are the dimensions of a 16-tooth, 45° helical gear?

Normal module 1.5, helix angle 45°: transverse module 2.12, transverse pressure angle 27.24°, pitch Ø33.94, tip Ø36.94, root Ø30.19; addendum 1.5, dedendum 1.88 (normal-module depths).