{
 "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": "tri-clamp-guide-plate",
 "name": "2 in double-faced guide plate for a hollow Ø10 piston rod",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Stirling & thermoacoustic",
 "year": null,
 "question": "How do I guide a piston rod inside a tri-clamp crankcase?",
 "tags": [
  "plate",
  "guide",
  "crosshead",
  "custom",
  "tri-clamp",
  "stirling",
  "long earth society"
 ],
 "aliases": [
  "tri clamp guide plate",
  "piston rod guide tri clamp"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": true,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/tri-clamp-guide-plate/",
 "sheet_txt": "https://xemstudio.com/objects/tri-clamp-guide-plate/sheet.txt",
 "sheet": {
  "basis": "ISO 2852 faces on both sides as the clamp-in bearing plate on this site; bushing size from its standard",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Clamped between the power cylinder and the reducer with a gasket and a clamp on each face. Two 10 × 14 × 15 sleeve bushings 48.4 mm apart guide the hollow piston rod, so the con-rod's side load never reaches the piston. Four Ø8 vents connect the back of the piston to the crankcase (the buffer)."
  ],
  "table": {
   "columns": [
    "feature",
    "value"
   ],
   "rows": [
    [
     "thickness",
     16
    ],
    [
     "boss",
     "Ø22, z −2.4 to 61"
    ],
    [
     "seats",
     "Ø14 × 15 at both ends"
    ],
    [
     "vents",
     "4 × Ø8 on r 17"
    ]
   ]
  }
 },
 "sheet_text": "2 in double-faced guide plate for a hollow Ø10 piston rod — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/tri-clamp-guide-plate/  (CC BY 4.0)\nBasis: ISO 2852 faces on both sides as the clamp-in bearing plate on this site; bushing size from its standard\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Clamped between the power cylinder and the reducer with a gasket and a clamp on each face. Two 10 × 14 × 15 sleeve bushings 48.4 mm apart guide the hollow piston rod, so the con-rod's side load never reaches the piston. Four Ø8 vents connect the back of the piston to the crankcase (the buffer).\n\nfeature  value\nthickness  16.0\nboss  Ø22, z −2.4 to 61\nseats  Ø14 × 15 at both ends\nvents  4 × Ø8 on r 17\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- ISO (via iTeh sample): ISO 2852 clamp liners: face profile and flange / groove diameters — PDF — standard excerpt; dimensions are facts — https://cdn.standards.iteh.ai/samples/7850/eb49c396488d408c8ced3e2961d76cf3/ISO-2852-1974.pdf\n- ASME: BPE Bioprocessing Equipment (clamp fitting dimensions, tube OD and wall) — standard — ASME; dimensions are facts [verify license at link] — https://www.asme.org/codes-standards/find-codes-standards/bpe-bioprocessing-equipment\n- Long Earth Society: Engine builds — web, video — LES site — https://longearthsociety.com/engineering/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/tri-clamp-guide-plate/index.json\nAPI: https://xemstudio.com/api/geometry?object=tri-clamp-guide-plate\n",
 "sources": [
  {
   "publisher": "ISO (via iTeh sample)",
   "title": "ISO 2852 clamp liners: face profile and flange / groove diameters",
   "url": "https://cdn.standards.iteh.ai/samples/7850/eb49c396488d408c8ced3e2961d76cf3/ISO-2852-1974.pdf",
   "formats": [
    "PDF"
   ],
   "license": "standard excerpt; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "ASME",
   "title": "BPE Bioprocessing Equipment (clamp fitting dimensions, tube OD and wall)",
   "url": "https://www.asme.org/codes-standards/find-codes-standards/bpe-bioprocessing-equipment",
   "formats": [
    "standard"
   ],
   "license": "ASME; dimensions are facts",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Long Earth Society",
   "title": "Engine builds",
   "url": "https://longearthsociety.com/engineering/",
   "formats": [
    "web",
    "video"
   ],
   "license": "LES site",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "tri-clamp-spool-bored-honed",
  "stirling-precision-rods",
  "list-tri-clamp-charged-beta"
 ],
 "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": [
  {
   "feature": "faces",
   "exact": "ISO 2852 2 in both sides, 16 apart",
   "mates": "Type B gaskets, 2 in clamps",
   "fit": "clamp",
   "files": "all"
  },
  {
   "feature": "bushing seats",
   "exact": "Ø14 × 15 at z −2.4 and 46",
   "mates": "10 × 14 × 15 sleeve bushings",
   "fit": "press",
   "files": "all"
  },
  {
   "feature": "vents",
   "exact": "4 × Ø8 on r 17",
   "mates": "buffer passage (no contact)",
   "fit": "designed",
   "files": "all"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. Typical FDM: hole +0.0 to +0.1 mm on diameter.",
  "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. Typical FDM: +0.2 mm.",
  "run": "turns or slides in use: pin in a link, rod through a guide. Typical FDM: +0.3 mm.",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. Typical FDM: +0.3 mm.",
  "clamp": "split part that closes on the mating part with screws: make it at size.",
  "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change."
 },
 "faq": [
  {
   "q": "Why two bushings?",
   "a": "One bushing is a pivot; two 48 mm apart hold the rod straight."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "guide-plate-2in-10mm",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/tri-clamp-guide-plate/guide-plate-2in-10mm.step",
   "stl": "https://xemstudio.com/files/hardware/tri-clamp-guide-plate/guide-plate-2in-10mm.stl",
   "note": "2 in double-faced guide plate: ISO 2852 faces at z 0 and 16, guide boss Ø22 from z −2.4 to 61, two Ø14 seats for 10 × 14 × 15 bushings (−2.4–12.6, 46–61), four Ø8 vents on r 17"
  }
 ],
 "markdown": "https://xemstudio.com/objects/tri-clamp-guide-plate/index.md"
}