Xem Studiomeasured geometry

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Lead screw and nut-slide (rotation to straight travel), Tr10×2

How does a lead screw move a slide? · Hardware · basis: Xem Studio design following Brown No. 103 (1868)

Also called: lead screw, screw slide, lead screw and nut, linear screw drive, husillo y carro, Gewindespindel mit Schlitten

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

sizes
4 in table

Notes

  • A screw held axially in two bearings turns; a nut that cannot turn (its foot runs in a rail slot) must then travel along the screw: 2 mm per turn for a Tr10×2 thread. Either direction of rotation gives the opposite travel.
  • Travel per turn = lead; force gain (ideal) = 2π × lever radius / lead, 2π × 40 / 2 = 126 with the 80 mm tommy bar; the 30° trapezoidal thread is self-locking at this lead angle (3.6°).
  • Brown's No. 103 (rectilinear motion of a slide by the rotation of a screw): the carriage feed of lathes, slides and stages. Basic-profile thread drawn engaged, no allowance.
  • Parts (each has its own page): lead-screw-tr10x2-l80-journals-6, nut-slide-tr10x2-16x24-rail-foot, lead-screw-frame-120-tr10x2, tommy-bar-6x80.
  • Brown's movement No. 103 (1868) shows it; this model is a Xem Studio design following his figure, every part at true size.

Lead screw and nut-slide (rotation to straight travel), Tr10×2 size chart

parametervalue
threadTr10×2
travel per turn2 mm
slide travel≈ 60 mm
lever80 mm tommy bar

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. 103: figure, his text and an animationwebPublisher'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

lead-screw-and-slide-mechanism-assemblyAssembled mechanism, all parts placed at one pose (STEP keeps each part separate)STEP · 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.
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Plain text: sheet.txt · JSON: /api/geometry?object=lead-screw-and-slide-mechanism

Lead screw and nut-slide (rotation to straight travel), Tr10×2, isometric render of a generated part
Render of lead-screw-and-slide-mechanism-assembly from the free STEP; not to scale.

Fits with

Lead screw Tr10×2, 80 mm thread, Ø6 journals, Ø20 head with Ø6 cross hole, isometric render of a generated part
Lead screw Tr10×2, 80 mm thread, Ø6 journals, Ø20 head with Ø6 cross hole20.0×20.0×118.0 mm★ 1 file
Nut-slide for Tr10×2, 16 × 24 × 16 with an 8 mm rail foot, isometric render of a generated part
Nut-slide for Tr10×2, 16 × 24 × 16 with an 8 mm rail foot16.0×32.1×16.0 mm★ 1 file
Lead-screw frame 120 × 40 with Ø6 bearings 94 mm apart and an 8.2 mm rail slot, isometric render of a generated part
Lead-screw frame 120 × 40 with Ø6 bearings 94 mm apart and an 8.2 mm rail slot120.0×44.1×40.0 mm★ 1 file
Tommy bar Ø6 × 80, isometric render of a generated part
Tommy bar Ø6 × 8080.0×6.0×6.0 mm★ 1 file

Questions

How does a lead screw move a slide?

A screw held axially in two bearings turns; a nut that cannot turn (its foot runs in a rail slot) must then travel along the screw: 2 mm per turn for a Tr10×2 thread. Either direction of rotation gives the opposite travel.

How far does the slide move per turn?

One lead: 2 mm for a single-start Tr10×2 thread.