{
 "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": "pololu-micro-metal-gearmotor-hp-6v",
 "name": "Pololu Micro Metal Gearmotor HP 6V (e.g. 100:1): 12 × 10 mm body, 3 mm D-shaft and M1.6 face holes",
 "kind": "modern",
 "category": "Electronic components",
 "group": "Motors",
 "year": null,
 "question": "What are the Pololu Micro Metal Gearmotor dimensions, shaft and mounting holes?",
 "tags": [
  "pololu micro metal gearmotor",
  "micro gearmotor",
  "12x10 gearmotor",
  "robot motor mount",
  "3 mm d-shaft motor"
 ],
 "aliases": [
  "Pololu micro metal gearmotor HP",
  "pololu 100:1 micro metal gearmotor hp 6v",
  "micro metal gearmotor dimensions",
  "pololu micro metal gearmotor mounting holes",
  "pololu mp lp micro metal gearmotor"
 ],
 "overall_mm": {
  "length": 35.8,
  "width": 12,
  "height": 10
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/pololu-micro-metal-gearmotor-hp-6v/",
 "sheet_txt": "https://xemstudio.com/objects/pololu-micro-metal-gearmotor-hp-6v/sheet.txt",
 "sheet": {
  "basis": "Pololu's micro metal gearmotor STEP model (no encoder) and the Pololu micro metal gearmotor dimension diagram.",
  "overall_mm": {
   "length": 35.8,
   "width": 12,
   "height": 10
  },
  "notes": [
   "Datum: shaft axis on Z at x=0, y=0; back terminals on z=0, output face up.",
   "Motor can Ø12.0 with flats to 10.0 (z=2.8..16.8); gearbox 12.0 × 10.0 × 9.0 (z=16.8..25.8).",
   "Output shaft Ø3.0 D-shaft, 10.0 long, flat 0.5 deep.",
   "Two M1.6 tapped holes in the gearbox face at (+3.8, +2.8) and (−3.8, −2.8), 9.44 apart diagonally.",
   "Same outside for HP, MP and LP 6V and every ratio except 1000:1 (12.0 mm gearbox); carbon-brush (HPCB) and extended-shaft versions are longer and not modelled.",
   "Exact nominal mm; terminals modelled as tabs, the small rear boss is not modelled."
  ],
  "table": {
   "columns": [
    "feature",
    "size (mm)"
   ],
   "rows": [
    [
     "body (X × Y)",
     "12.0 × 10.0"
    ],
    [
     "overall length incl. shaft",
     "35.8"
    ],
    [
     "gearbox length",
     "9.0"
    ],
    [
     "shaft",
     "Ø3.0 D × 10.0"
    ],
    [
     "face holes",
     "2 × M1.6, (±3.8, ±2.8)"
    ]
   ]
  }
 },
 "sheet_text": "Pololu Micro Metal Gearmotor HP 6V (e.g. 100:1): 12 × 10 mm body, 3 mm D-shaft and M1.6 face holes — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/pololu-micro-metal-gearmotor-hp-6v/  (sheet CC BY 4.0)\nBasis: Pololu's micro metal gearmotor STEP model (no encoder) and the Pololu micro metal gearmotor dimension diagram.\nCatalog version: 2026-10-20\n\nOverall (mm): length 35.8, width 12.0, height 10.0\n- Datum: shaft axis on Z at x=0, y=0; back terminals on z=0, output face up.\n- Motor can Ø12.0 with flats to 10.0 (z=2.8..16.8); gearbox 12.0 × 10.0 × 9.0 (z=16.8..25.8).\n- Output shaft Ø3.0 D-shaft, 10.0 long, flat 0.5 deep.\n- Two M1.6 tapped holes in the gearbox face at (+3.8, +2.8) and (−3.8, −2.8), 9.44 apart diagonally.\n- Same outside for HP, MP and LP 6V and every ratio except 1000:1 (12.0 mm gearbox); carbon-brush (HPCB) and extended-shaft versions are longer and not modelled.\n- Exact nominal mm; terminals modelled as tabs, the small rear boss is not modelled.\n\nfeature  size (mm)\nbody (X × Y)  12.0 × 10.0\noverall length incl. shaft  35.8\ngearbox length  9.0\nshaft  Ø3.0 D × 10.0\nface holes  2 × M1.6, (±3.8, ±2.8)\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Pololu: Micro Metal Gearmotor dimension diagram (PDF) — web — Publisher's page; dimensions are facts — https://www.pololu.com/file/0J949/micro-metal-gearmotors-dimensions.pdf\n- Pololu: Micro Metal Gearmotor 3D STEP models — web — Publisher's page; dimensions are facts — https://www.pololu.com/file/0J2042/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/pololu-micro-metal-gearmotor-hp-6v/index.json\nAPI: https://xemstudio.com/api/geometry?object=pololu-micro-metal-gearmotor-hp-6v\n",
 "sources": [
  {
   "publisher": "Pololu",
   "title": "Micro Metal Gearmotor dimension diagram (PDF)",
   "url": "https://www.pololu.com/file/0J949/micro-metal-gearmotors-dimensions.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Pololu",
   "title": "Micro Metal Gearmotor 3D STEP models",
   "url": "https://www.pololu.com/file/0J2042/",
   "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": [
  "775-dc-motor",
  "jga25-370-gearmotor",
  "coreless-motor-8520",
  "metric-shafts",
  "machine-screws-metric-pan-cheese-csk"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no tolerance added)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no tolerance added. 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. Typical accuracy by process and ISO 286 fits: https://xemstudio.com/tolerances/",
 "mating": [
  {
   "feature": "Output shaft",
   "exact": "Ø3.0 D-shaft, 10.0 long",
   "mates": "Pololu wheel / hub with 3 mm D-bore",
   "fit": "press",
   "files": "all"
  },
  {
   "feature": "Gearbox face holes",
   "exact": "2 × M1.6, 9.44 apart diagonal",
   "mates": "M1.6 screws through a face-mount bracket",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "Gearbox body",
   "exact": "12.0 × 10.0 mm",
   "mates": "clamp-style motor bracket",
   "fit": "clamp",
   "files": "all"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. ISO 286 equivalent: H7/p6 (locational interference) or tighter.",
  "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. ISO 286 equivalent: H7/g6 or H7/h6.",
  "run": "turns or slides in use: pin in a link, rod through a guide. ISO 286 equivalent: H8/f7 (close running).",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. ISO 286 equivalent: H9/d9 (free running) or looser.",
  "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": "How big is a Pololu micro metal gearmotor?",
   "a": "12.0 × 10.0 mm cross-section, 35.8 mm long including the 10.0 mm shaft (9.0 mm gearbox)."
  },
  {
   "q": "What are the mounting holes?",
   "a": "Two M1.6 tapped holes in the gearbox face at (±3.8, ±2.8) mm from the shaft axis."
  },
  {
   "q": "What shaft does it have?",
   "a": "A Ø3.0 mm D-shaft, 10.0 mm long, with a 0.5 mm deep flat."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "pololu-micro-metal-gearmotor-hp-6v",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/pololu-micro-metal-gearmotor-hp-6v/pololu-micro-metal-gearmotor-hp-6v.step",
   "stl": "https://xemstudio.com/files/hardware/pololu-micro-metal-gearmotor-hp-6v/pololu-micro-metal-gearmotor-hp-6v.stl",
   "note": "Pololu Micro Metal Gearmotor HP 6V (e.g. 100:1): 12 × 10 mm body, 3 mm D-shaft and M1.6 face holes"
  }
 ],
 "markdown": "https://xemstudio.com/objects/pololu-micro-metal-gearmotor-hp-6v/index.md"
}