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Plain flat-belt pulley Ø80 × 34 face, Ø8 bore (no flanges)

What is a plain Ø80 flat-belt pulley for? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance

Also called: plain pulley, flat belt pulley, pulley without flanges, polea plana sin pestañas, Flachriemenscheibe ohne Bord

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

length
80.0 mm
width
80.0 mm
height
34.0 mm

Notes

  • Ø80 × 34 mm straight face, Ø8 bore, no flanges: the face is exactly the belt's width, so a twisted belt can leave it at an angle (quarter-turn and guide-pulley drives) without riding over a flange.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Plain flat-belt pulley Ø80 × 34 face, Ø8 bore size chart

dimensionvalue
faceØ80 × 34 mm
boreØ8
flangesnone

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. 256: 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-80x34pulley, axis Z, centred on z = 0STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=plain-flat-pulley-80x34

Plain flat-belt pulley Ø80 × 34 face, Ø8 bore (no flanges), isometric render of a generated part
Render of plain-flat-pulley-80x34 from the free STEP; not to scale.

Fits with

Quarter-turn belt between shafts at right angles (no guide pulleys), isometric render of a generated part
Quarter-turn belt between shafts at right angles (no guide pulleys)5 sizes★ 1 file
Two speeds from two belts on fast and loose pulleys, isometric render of a generated part
Two speeds from two belts on fast and loose pulleys5 sizes★ 1 file

Questions

What is a plain Ø80 flat-belt pulley for?

Ø80 × 34 mm straight face, Ø8 bore, no flanges: the face is exactly the belt's width, so a twisted belt can leave it at an angle (quarter-turn and guide-pulley drives) without riding over a flange.