{
 "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": "scotch-yoke-crosshead-48x14-b5",
 "name": "Scotch-yoke crosshead 48 × 14 × 8, 3 mm slot, two Ø5 guide bores",
 "kind": "modern",
 "category": "Hardware",
 "group": "Mechanism parts",
 "year": null,
 "question": "What is a Scotch yoke crosshead?",
 "tags": [
  "mechanism part",
  "507 mechanical movements"
 ],
 "aliases": [
  "scotch yoke slider",
  "slotted crosshead",
  "cruceta ranurada",
  "Kulissenstein (Kreuzkopf)"
 ],
 "overall_mm": {
  "length": 48,
  "width": 14,
  "height": 8
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/scotch-yoke-crosshead-48x14-b5/",
 "sheet_txt": "https://xemstudio.com/objects/scotch-yoke-crosshead-48x14-b5/sheet.txt",
 "sheet": {
  "basis": "Xem Studio design following Brown's figure (1868); true size, no printing allowance",
  "overall_mm": {
   "length": 48,
   "width": 14,
   "height": 8
  },
  "notes": [
   "48 × 14 × 8 block with a 30 × 3 mm through slot across it (the crank pin slides in it) and two Ø5 bores 36 mm apart along its length for the pillar guides it runs on.",
   "Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features)."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "block",
     "48 × 14 × 8 mm"
    ],
    [
     "slot",
     "30 × 3 mm (Ø3 crank pin)"
    ],
    [
     "guide bores",
     "2 × Ø5 at x = ±18"
    ]
   ]
  }
 },
 "sheet_text": "Scotch-yoke crosshead 48 × 14 × 8, 3 mm slot, two Ø5 guide bores — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/scotch-yoke-crosshead-48x14-b5/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)\nBasis: Xem Studio design following Brown's figure (1868); true size, no printing allowance\nCatalog version: 2026-10-20\n\nOverall (mm): length 48.0, width 14.0, height 8.0\n- 48 × 14 × 8 block with a 30 × 3 mm through slot across it (the crank pin slides in it) and two Ø5 bores 36 mm apart along its length for the pillar guides it runs on.\n- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).\n\ndimension  value\nblock  48 × 14 × 8 mm\nslot  30 × 3 mm (Ø3 crank pin)\nguide bores  2 × Ø5 at x = ±18\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. 331: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_331.html\n- Xem Studio: drawing — web — Publisher's page; dimensions are facts — https://xemstudio.com/objects/scotch-yoke-mechanism/\n\nFree files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/scotch-yoke-crosshead-48x14-b5/index.json\nAPI: https://xemstudio.com/api/geometry?object=scotch-yoke-crosshead-48x14-b5\n",
 "sources": [
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   "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
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  {
   "publisher": "507movements.com",
   "title": "Brown's movement No. 331: figure, his text and an animation",
   "url": "https://507movements.com/mm_331.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Xem Studio",
   "title": "drawing",
   "url": "https://xemstudio.com/objects/scotch-yoke-mechanism/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
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 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "scotch-yoke-mechanism"
 ],
 "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": "What is a Scotch yoke crosshead?",
   "a": "48 × 14 × 8 block with a 30 × 3 mm through slot across it (the crank pin slides in it) and two Ø5 bores 36 mm apart along its length for the pillar guides it runs on."
  }
 ],
 "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": "scotch-yoke-crosshead-48x14-b5",
   "formats": [
    "step",
    "stl"
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   "price_usd": 0,
   "license": "Xem Studio Design License",
   "step": "https://xemstudio.com/files/hardware/scotch-yoke-crosshead-48x14-b5/scotch-yoke-crosshead-48x14-b5.step",
   "stl": "https://xemstudio.com/files/hardware/scotch-yoke-crosshead-48x14-b5/scotch-yoke-crosshead-48x14-b5.stl",
   "note": "crosshead, z 0..8, slot along X, bores along Y"
  }
 ],
 "markdown": "https://xemstudio.com/objects/scotch-yoke-crosshead-48x14-b5/index.md"
}