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Guide pulley Ø28.28 × 12, Ø6 bore (plain face)

What size is the guide pulley for a right-angle belt? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance

Also called: guide pulley, idler pulley, mule pulley, polea guía, Leitrolle

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

length
28.28 mm
width
28.28 mm
height
12.0 mm

Notes

  • Plain Ø28.28 × 12 pulley (Ø6 bore) for the right-angle guide-pulley drive: for two Ø40 pulleys whose belt lines run parallel, the guide's diameter is the distance between the strands it joins, 20√2 = 28.28 mm.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Guide pulley Ø28.28 × 12, Ø6 bore size chart

dimensionvalue
faceØ28.28 × 12 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. 3: 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

plain-flat-pulley-28-28x12-bore6pulley, axis Z, centred on z = 0STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=plain-flat-pulley-28-28x12-bore6

Guide pulley Ø28.28 × 12, Ø6 bore (plain face), isometric render of a generated part
Render of plain-flat-pulley-28-28x12-bore6 from the free STEP; not to scale.

Fits with

Belt drive between shafts at right angles with two guide pulleys, isometric render of a generated part
Belt drive between shafts at right angles with two guide pulleys4 sizes★ 1 file

Questions

What size is the guide pulley for a right-angle belt?

Plain Ø28.28 × 12 pulley (Ø6 bore) for the right-angle guide-pulley drive: for two Ø40 pulleys whose belt lines run parallel, the guide's diameter is the distance between the strands it joins, 20√2 = 28.28 mm.