{
 "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": "radial-shaft-seal-12x22x7",
 "name": "Radial shaft seal 12 × 22 × 7 (envelope)",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Bearings & seals",
 "year": null,
 "question": "What size is a 12 × 22 × 7 shaft seal?",
 "tags": [
  "seal",
  "shaft seal",
  "oil seal",
  "radial shaft seal"
 ],
 "aliases": [
  "12x22x7 oil seal",
  "shaft seal 12 22 7 dimensions"
 ],
 "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/radial-shaft-seal-12x22x7/",
 "sheet_txt": "https://xemstudio.com/objects/radial-shaft-seal-12x22x7/sheet.txt",
 "sheet": {
  "basis": "Envelope at the listed size: shaft 12, housing bore 22, width 7",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Envelope only: the space the seal takes in its housing. Elastomer lip seals in this size are made for low pressure; a seal on a pressurised crankcase has to be one rated for that pressure."
  ],
  "table": {
   "columns": [
    "d_mm",
    "D_mm",
    "b_mm"
   ],
   "rows": [
    [
     12,
     22,
     7
    ]
   ]
  }
 },
 "sheet_text": "Radial shaft seal 12 × 22 × 7 (envelope) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/radial-shaft-seal-12x22x7/  (CC BY 4.0)\nBasis: Envelope at the listed size: shaft 12, housing bore 22, width 7\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Envelope only: the space the seal takes in its housing. Elastomer lip seals in this size are made for low pressure; a seal on a pressurised crankcase has to be one rated for that pressure.\n\nd_mm  D_mm  b_mm\n12  22  7\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Tameson (product listing): Rotary shaft seal 12 × 22 × 7 mm (DIN 3760 sizes) — web — vendor page; dimensions are facts [verify license at link] — https://tameson.com/products/s2avq-x20-nbr-design-a-rotary-shaft-seal-12x22x7mm-20-pieces\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/radial-shaft-seal-12x22x7/index.json\nAPI: https://xemstudio.com/api/geometry?object=radial-shaft-seal-12x22x7\n",
 "sources": [
  {
   "publisher": "Tameson (product listing)",
   "title": "Rotary shaft seal 12 × 22 × 7 mm (DIN 3760 sizes)",
   "url": "https://tameson.com/products/s2avq-x20-nbr-design-a-rotary-shaft-seal-12x22x7mm-20-pieces",
   "formats": [
    "web"
   ],
   "license": "vendor page; dimensions are facts",
   "license_verified": false,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "htd-crankcase-caps-3in",
  "list-htd-10in"
 ],
 "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": "OD",
   "exact": "Ø22 × 7",
   "mates": "seal-cap housing",
   "fit": "press",
   "files": "all"
  },
  {
   "feature": "lip",
   "exact": "Ø12",
   "mates": "Ø12 shaft",
   "fit": "run",
   "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": "What housing bore does a 12 × 22 × 7 seal need?",
   "a": "Ø22 × 7 deep."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "shaft-seal-12x22x7",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/radial-shaft-seal-12x22x7/shaft-seal-12x22x7.step",
   "stl": "https://xemstudio.com/files/hardware/radial-shaft-seal-12x22x7/shaft-seal-12x22x7.stl",
   "note": "radial shaft seal 12 × 22 × 7 envelope (DIN 3760 housing size): ring only, lip and spring not drawn"
  }
 ],
 "markdown": "https://xemstudio.com/objects/radial-shaft-seal-12x22x7/index.md"
}