{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "eccentric-slotted-yoke-30",
 "name": "Slotted yoke for a Ø30 eccentric (30 mm slot), with rod",
 "kind": "modern",
 "category": "Hardware",
 "group": "Mechanism parts",
 "year": null,
 "question": "What is an eccentric yoke?",
 "tags": [
  "mechanism part",
  "507 mechanical movements"
 ],
 "aliases": [
  "eccentric yoke",
  "slotted yoke",
  "scotch yoke eccentric",
  "yugo ranurado de excéntrica",
  "Exzenterschleife (Kulisse)"
 ],
 "overall_mm": {
  "length": 56,
  "width": 82,
  "height": 8
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/eccentric-slotted-yoke-30/",
 "sheet_txt": "https://xemstudio.com/objects/eccentric-slotted-yoke-30/sheet.txt",
 "sheet": {
  "basis": "Xem Studio design following Brown's figure (1868); true size, no printing allowance",
  "overall_mm": {
   "length": 56,
   "width": 82,
   "height": 8
  },
  "notes": [
   "Rectangular frame whose inner faces are exactly 30 mm apart (the eccentric's diameter) and 44 mm long, with an 8 × 8 rod and a Ø3 end hole: the eccentric turns inside and the frame moves straight, harmonically, without a strap.",
   "Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features)."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "slot",
     "30 × 44 mm"
    ],
    [
     "frame",
     "56 × 42 × 8 mm"
    ],
    [
     "rod",
     "8 × 8 × 40, Ø3 hole"
    ]
   ]
  }
 },
 "sheet_text": "Slotted yoke for a Ø30 eccentric (30 mm slot), with rod — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/eccentric-slotted-yoke-30/  (CC BY 4.0)\nBasis: Xem Studio design following Brown's figure (1868); true size, no printing allowance\nCatalog version: 2026-10-20\n\nOverall (mm): length 56.0, width 82.0, height 8.0\n- Rectangular frame whose inner faces are exactly 30 mm apart (the eccentric's diameter) and 44 mm long, with an 8 × 8 rod and a Ø3 end hole: the eccentric turns inside and the frame moves straight, harmonically, without a strap.\n- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).\n\ndimension  value\nslot  30 × 44 mm\nframe  56 × 42 × 8 mm\nrod  8 × 8 × 40, Ø3 hole\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. 90: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_090.html\n- Xem Studio: drawing — web — Publisher's page; dimensions are facts — https://xemstudio.com/objects/eccentric-and-slotted-yoke-mechanism/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/eccentric-slotted-yoke-30/index.json\nAPI: https://xemstudio.com/api/geometry?object=eccentric-slotted-yoke-30\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. 90: figure, his text and an animation",
   "url": "https://507movements.com/mm_090.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/eccentric-and-slotted-yoke-mechanism/",
   "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": [
  "eccentric-and-slotted-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 an eccentric yoke?",
   "a": "Rectangular frame whose inner faces are exactly 30 mm apart (the eccentric's diameter) and 44 mm long, with an 8 × 8 rod and a Ø3 end hole: the eccentric turns inside and the frame moves straight, harmonically, without a strap."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "eccentric-slotted-yoke-30",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/eccentric-slotted-yoke-30/eccentric-slotted-yoke-30.step",
   "stl": "https://xemstudio.com/files/hardware/eccentric-slotted-yoke-30/eccentric-slotted-yoke-30.stl",
   "note": "yoke, z 0..8, moves along Y"
  }
 ],
 "markdown": "https://xemstudio.com/objects/eccentric-slotted-yoke-30/index.md"
}