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Rectangular (oblong) gear, module 1.5, 40 teeth, follower

What shape is the follower of a rectangular gear pair? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance

Also called: rectangular gear, oblong gear, non circular gear, engranaje rectangular, Rechteckzahnrad

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

length
57.11 mm
width
73.34 mm
height
12.0 mm

Notes

  • Pitch curve computed as the exact rolling mate of the driver at 58.37 mm centres (r₂ = a − r₁, dθ₂ = r₁/r₂·dθ₁, one turn each).
  • Teeth generated by a 20° basic rack rolled round the pitch curve (spline outline within 0.010 mm of the generated curve); Ø8 bore at the pivot, 12 mm face.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Rectangular (oblong) gear, module 1.5, 40 teeth, follower size chart

dimensionvalue
module1.5
teeth40
size57.11 × 73.35 mm over tips
boreØ8
face12 mm

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. 30: 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

rectangular-gear-m1-5-40t-followergear, pivot on the Z axis, z 0..12STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=rectangular-gear-m1-5-40t-follower

Rectangular (oblong) gear, module 1.5, 40 teeth, follower, isometric render of a generated part
Render of rectangular-gear-m1-5-40t-follower from the free STEP; not to scale.

Fits with

Rectangular (oblong) gears for a varying speed, isometric render of a generated part
Rectangular (oblong) gears for a varying speed4 sizes★ 1 file

Questions

What shape is the follower of a rectangular gear pair?

Pitch curve computed as the exact rolling mate of the driver at 58.37 mm centres (r₂ = a − r₁, dθ₂ = r₁/r₂·dθ₁, one turn each).