{
 "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": "775-dc-motor",
 "name": "775 brushed DC motor Ø42 × 66.7 mm, Ø5 shaft",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Motion",
 "year": null,
 "question": "What are the 775 motor dimensions and mounting holes?",
 "tags": [
  "775",
  "dc motor",
  "brushed motor",
  "motor"
 ],
 "aliases": [
  "775 motor dimensions",
  "775 motor mounting holes",
  "775 motor shaft size",
  "775 motor stl",
  "775 dc motor step"
 ],
 "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/775-dc-motor/",
 "sheet_txt": "https://xemstudio.com/objects/775-dc-motor/sheet.txt",
 "sheet": {
  "basis": "Common supplier drawings for the 775 brushed motor; values typical, verify on your unit",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "The 775 can is Ø42 × 66.7 mm with a 1.5 mm chamfer on the front edge.",
   "The front face has a Ø17.5 × 2 mm boss and a Ø5 shaft 17 mm long; 85.7 mm overall.",
   "Two M4 holes on 29 mm centres in the face are drawn as Ø4 plain bores 6 mm deep (the thread's major diameter).",
   "It is mounted by the face holes or in a Ø42 cradle (see Mating features)."
  ],
  "table": {
   "columns": [
    "feature",
    "size_mm"
   ],
   "rows": [
    [
     "can",
     "Ø42 × 66.7"
    ],
    [
     "boss",
     "Ø17.5 × 2"
    ],
    [
     "shaft",
     "Ø5 × 17"
    ],
    [
     "face holes",
     "2 × M4 on 29"
    ],
    [
     "overall",
     85.7
    ]
   ]
  }
 },
 "sheet_text": "775 brushed DC motor Ø42 × 66.7 mm, Ø5 shaft — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/775-dc-motor/  (CC BY 4.0)\nBasis: Common supplier drawings for the 775 brushed motor; values typical, verify on your unit\nCatalog version: 2026-10-20\n\nSizes: see table below\n- The 775 can is Ø42 × 66.7 mm with a 1.5 mm chamfer on the front edge.\n- The front face has a Ø17.5 × 2 mm boss and a Ø5 shaft 17 mm long; 85.7 mm overall.\n- Two M4 holes on 29 mm centres in the face are drawn as Ø4 plain bores 6 mm deep (the thread's major diameter).\n- It is mounted by the face holes or in a Ø42 cradle (see Mating features).\n\nfeature  size_mm\ncan  Ø42 × 66.7\nboss  Ø17.5 × 2\nshaft  Ø5 × 17\nface holes  2 × M4 on 29\noverall  85.7\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Pololu: Micro metal gearmotor dimension diagram — PDF, STEP — Pololu site terms [verify license at link] — https://www.pololu.com/category/60/micro-metal-gearmotors\n- DFRobot: TT geared motor drawing — web — DFRobot site terms [verify license at link] — https://www.dfrobot.com/product-100.html\n- Wikipedia: DC motor — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/DC_motor\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/775-dc-motor/index.json\nAPI: https://xemstudio.com/api/geometry?object=775-dc-motor\n",
 "sources": [
  {
   "publisher": "Pololu",
   "title": "Micro metal gearmotor dimension diagram",
   "url": "https://www.pololu.com/category/60/micro-metal-gearmotors",
   "formats": [
    "PDF",
    "STEP"
   ],
   "license": "Pololu site terms",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "DFRobot",
   "title": "TT geared motor drawing",
   "url": "https://www.dfrobot.com/product-100.html",
   "formats": [
    "web"
   ],
   "license": "DFRobot site terms",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Wikipedia",
   "title": "DC motor",
   "url": "https://en.wikipedia.org/wiki/DC_motor",
   "formats": [
    "web"
   ],
   "license": "CC BY-SA 4.0 (text)",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "n20-gearmotor",
  "tt-gearmotor",
  "shaft-couplers",
  "nema-17-stepper",
  "socket-head-cap-screws-metric"
 ],
 "fits": [
  {
   "role": "Connects to",
   "items": [
    {
     "slug": "shaft-couplers",
     "why": "Ø5 shaft into a coupler bore (slide)"
    },
    {
     "slug": "socket-head-cap-screws-metric",
     "why": "two M4 into the face holes"
    }
   ]
  },
  {
   "role": "Alternatives",
   "items": [
    {
     "slug": "nema-17-stepper",
     "why": "a stepper where position control is needed"
    }
   ]
  }
 ],
 "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": "775 can",
   "exact": "Ø42",
   "mates": "cradle",
   "fit": "socket",
   "files": "motor-775"
  },
  {
   "feature": "775 shaft",
   "exact": "Ø5",
   "mates": "hub bore",
   "fit": "slide",
   "files": "motor-775"
  }
 ],
 "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 are 775 motor dimensions?",
   "a": "Ø42 × 66.7 mm body, Ø5 shaft 17 mm long, two M4 holes 29 mm apart; 85.7 mm overall."
  },
  {
   "q": "What is the 775 shaft diameter?",
   "a": "5 mm, 17 mm long, on a Ø17.5 × 2 boss."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "motor-775",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/dc-motors-775-n20-tt/motor-775.step",
   "stl": "https://xemstudio.com/files/hardware/dc-motors-775-n20-tt/motor-775.stl",
   "note": "775 brushed DC: Ø42 × 66.7, 2 × M4 on 29 mm (tapped, Ø4 plain bores), Ø5 shaft × 17"
  }
 ],
 "markdown": "https://xemstudio.com/objects/775-dc-motor/index.md"
}