{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "lead-screw-and-slide-mechanism",
 "name": "Lead screw and nut-slide (rotation to straight travel), Tr10×2",
 "kind": "hardware",
 "category": "Mechanisms",
 "group": "Screws",
 "year": null,
 "question": "How does a lead screw move a slide?",
 "tags": [
  "mechanism",
  "screws",
  "kinematics",
  "507 mechanical movements"
 ],
 "aliases": [
  "lead screw",
  "screw slide",
  "lead screw and nut",
  "linear screw drive",
  "husillo y carro",
  "Gewindespindel mit Schlitten"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/lead-screw-and-slide-mechanism/",
 "sheet_txt": "https://xemstudio.com/objects/lead-screw-and-slide-mechanism/sheet.txt",
 "sheet": {
  "basis": "Xem Studio design following Brown No. 103 (1868)",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "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."
  ],
  "table": {
   "columns": [
    "parameter",
    "value"
   ],
   "rows": [
    [
     "thread",
     "Tr10×2"
    ],
    [
     "travel per turn",
     "2 mm"
    ],
    [
     "slide travel",
     "≈ 60 mm"
    ],
    [
     "lever",
     "80 mm tommy bar"
    ]
   ]
  }
 },
 "sheet_text": "Lead screw and nut-slide (rotation to straight travel), Tr10×2 — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/lead-screw-and-slide-mechanism/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)\nBasis: Xem Studio design following Brown No. 103 (1868)\nCatalog version: 2026-10-20\n\nSizes: see table below\n- 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.\n- 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°).\n- 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.\n- 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.\n- Brown's movement No. 103 (1868) shows it; this model is a Xem Studio design following his figure, every part at true size.\n\nparameter  value\nthread  Tr10×2\ntravel per turn  2 mm\nslide travel  ≈ 60 mm\nlever  80 mm tommy bar\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Henry T. Brown (1868, public domain): Five Hundred and Seven Mechanical Movements — scan on archive.org — web — Publisher's page; dimensions are facts — https://archive.org/details/fivehundredseven00browiala\n- 507movements.com: Brown's movement No. 103: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_103.html\n\nFree files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/lead-screw-and-slide-mechanism/index.json\nAPI: https://xemstudio.com/api/geometry?object=lead-screw-and-slide-mechanism\n",
 "sources": [
  {
   "publisher": "Henry T. Brown (1868, public domain)",
   "title": "Five Hundred and Seven Mechanical Movements — scan on archive.org",
   "url": "https://archive.org/details/fivehundredseven00browiala",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "507movements.com",
   "title": "Brown's movement No. 103: figure, his text and an animation",
   "url": "https://507movements.com/mm_103.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "lead-screw-tr10x2-l80-journals-6",
  "nut-slide-tr10x2-16x24-rail-foot",
  "lead-screw-frame-120-tr10x2",
  "tommy-bar-6x80"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "How does a lead screw move a slide?",
   "a": "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."
  },
  {
   "q": "How far does the slide move per turn?",
   "a": "One lead: 2 mm for a single-start Tr10×2 thread."
  }
 ],
 "files_license": {
  "name": "Xem Studio Design License",
  "holder": "Xem Studio",
  "url": "https://xemstudio.com/license/",
  "note": "Xem Studio's own design: free to use, print, modify and sell things made from it; not to be republished or redistributed as files."
 },
 "offers": [
  {
   "file": "lead-screw-and-slide-mechanism-assembly",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "Xem Studio Design License",
   "step": "https://xemstudio.com/files/hardware/lead-screw-and-slide-mechanism/lead-screw-and-slide-mechanism-assembly.step",
   "stl": "https://xemstudio.com/files/hardware/lead-screw-and-slide-mechanism/lead-screw-and-slide-mechanism-assembly.stl",
   "note": "Assembled mechanism, all parts placed at one pose (STEP keeps each part separate)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/lead-screw-and-slide-mechanism/index.md"
}