{
 "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": "curt-trailer-ball-40002",
 "name": "CURT 40002 trailer ball (1-7/8 in ball, 1 × 2-1/8 in shank, 3,500 lb)",
 "kind": "modern",
 "category": "Tools & garage",
 "group": "Trailer balls",
 "year": null,
 "question": "What are the dimensions of the CURT 40002 trailer ball?",
 "tags": [
  "trailer balls"
 ],
 "aliases": [
  "curt 40002",
  "1-7/8 inch trailer ball dimensions",
  "1-7/8 hitch ball 1 inch shank",
  "1-7/8 inch ball size mm",
  "1-7/8 ball coupler fit",
  "trailer ball shank size",
  "1-7/8 inch hitch ball cover",
  "hitch ball sizes chart",
  "bola de remolque 1-7/8",
  "Kugelkopf 1-7/8 Zoll",
  "bola de engate medidas"
 ],
 "overall_mm": {
  "length": 47.62,
  "width": 47.62,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 2,
 "url": "https://xemstudio.com/objects/curt-trailer-ball-40002/",
 "sheet_txt": "https://xemstudio.com/objects/curt-trailer-ball-40002/sheet.txt",
 "sheet": {
  "basis": "Manufacturer specifications (Lippert (CURT))",
  "overall_mm": {
   "length": 47.62,
   "width": 47.62,
   "height": null
  },
  "notes": [
   "CURT part 40002 is a 1-7/8 in trailer ball on a 1 in diameter × 2-1/8 in long shank, rated 3,500 lb GTW.",
   "Ball and shank sizes are from the product title; rise, flat size and thread are not published.",
   "Ball-mount hole must match the shank diameter; shank length must cover the mount thickness plus washer and nut.",
   "True size, no printing tolerance added. Only published numbers are used; anything not published is said so."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "Ball diameter",
     "1 7/8 in (47.62 mm)"
    ],
    [
     "Shank diameter",
     "1 in (25.4 mm)"
    ],
    [
     "Shank length",
     "2 1/8 in (53.97 mm)"
    ],
    [
     "Gross trailer weight rating",
     "3,500 lb"
    ],
    [
     "Finish",
     "Chrome"
    ],
    [
     "Part number",
     "40002"
    ]
   ]
  }
 },
 "sheet_text": "CURT 40002 trailer ball (1-7/8 in ball, 1 × 2-1/8 in shank, 3,500 lb) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/curt-trailer-ball-40002/  (sheet CC BY 4.0)\nBasis: Manufacturer specifications (Lippert (CURT))\nCatalog version: 2026-10-20\n\nOverall (mm): length 47.62, width 47.62\n- CURT part 40002 is a 1-7/8 in trailer ball on a 1 in diameter × 2-1/8 in long shank, rated 3,500 lb GTW.\n- Ball and shank sizes are from the product title; rise, flat size and thread are not published.\n- Ball-mount hole must match the shank diameter; shank length must cover the mount thickness plus washer and nut.\n- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.\n\ndimension  value\nBall diameter  1 7/8 in (47.62 mm)\nShank diameter  1 in (25.4 mm)\nShank length  2 1/8 in (53.97 mm)\nGross trailer weight rating  3,500 lb\nFinish  Chrome\nPart number  40002\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Lippert (CURT): CURT 1-7/8\" Trailer Ball (1\" x 2-1/8\" Shank, 3,500 lbs.) #40002 — web — Publisher's page; dimensions are facts — https://www.lippert.com/curt-1875in-trailer-ball-1in-x-2125in-shank-3500-lbs-chrome-40002-2020103140\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 2 parts): https://xemstudio.com/files/hardware/curt-trailer-ball-40002/index.json\nAPI: https://xemstudio.com/api/geometry?object=curt-trailer-ball-40002\n",
 "sources": [
  {
   "publisher": "Lippert (CURT)",
   "title": "CURT 1-7/8\" Trailer Ball (1\" x 2-1/8\" Shank, 3,500 lbs.) #40002",
   "url": "https://www.lippert.com/curt-1875in-trailer-ball-1in-x-2125in-shank-3500-lbs-chrome-40002-2020103140",
   "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": [
  "curt-trailer-ball-40015",
  "curt-trailer-ball-40161",
  "curt-trailer-ball-40072",
  "curt-trailer-ball-40003"
 ],
 "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 size is CURT trailer ball 40002?",
   "a": "1-7/8 in ball (47.62 mm), 1 in × 2-1/8 in shank (25.4 mm × 53.97 mm), 3,500 lb."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "curt-trailer-ball-40002-ball",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/curt-trailer-ball-40002/curt-trailer-ball-40002-ball.step",
   "stl": "https://xemstudio.com/files/hardware/curt-trailer-ball-40002/curt-trailer-ball-40002-ball.stl",
   "note": "Ball Ø47.62 mm"
  },
  {
   "file": "curt-trailer-ball-40002-shank",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/curt-trailer-ball-40002/curt-trailer-ball-40002-shank.step",
   "stl": "https://xemstudio.com/files/hardware/curt-trailer-ball-40002/curt-trailer-ball-40002-shank.stl",
   "note": "Shank Ø25.4 × 53.97 mm (collar, rise and thread not published, not modelled)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/curt-trailer-ball-40002/index.md"
}