{
 "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": "rc-plane-and-car-motors",
 "name": "RC plane outrunners (2212, 2216, 2826, 3508, 4110, 6374) and car inrunners (540 / 3650, 4274, 1/8 scale)",
 "kind": "modern",
 "category": "Electronics",
 "group": "RC & drones",
 "year": null,
 "question": "What are the dimensions of a 540 brushless motor?",
 "tags": [
  "brushless",
  "rc car",
  "rc plane",
  "inrunner",
  "outrunner",
  "540",
  "motor mount"
 ],
 "aliases": [
  "540 brushless motor dimensions",
  "3650 motor size",
  "4274 motor dimensions",
  "2212 motor dimensions",
  "rc car motor mount holes"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 5,
 "url": "https://xemstudio.com/objects/rc-plane-and-car-motors/",
 "sheet_txt": "https://xemstudio.com/objects/rc-plane-and-car-motors/sheet.txt",
 "sheet": {
  "basis": "Maker spec pages (Castle Creations, Hobbywing, SunnySky, iFlight, Flipsky); T-Motor via retailer copies (marked)",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Car 540-class (36 mm can): Ø36 × about 52–53 mm, mounts with 2 × M3 on 25 mm (Castle states it). Shafts differ by model: 3.175 mm (Hobbywing 3650) or 5 mm (Castle 1410, XeRun 3652) — check yours.",
   "1/8 scale: Hobbywing 4274 Ø42 × 74, 4268 Ø42 × 68, Ø5 shaft; Castle 1515 Ø40 (41.4 over fins) × 75.4 with 3 and 4 holes at 25 mm.",
   "Plane outrunners ship with a cross ('X') mount; its hole spacing appears only in maker drawings, so it is not listed. SunnySky X2212 Ø27.5 × 30 with a 3.175 shaft and 5 mm prop adapter.",
   "Robotics / e-skate 6374: Ø63.4 × 77 body, Ø8 shaft with a 3 × 1.5 key (Flipsky); mount screws M4, pattern not published.",
   "The 3650 and 4274 envelopes use the 2 × M3 on 25 pattern Castle publishes for 36 mm cans; Hobbywing does not state its pattern, so check before drilling."
  ],
  "table": {
   "columns": [
    "motor",
    "type",
    "dia_mm",
    "length_mm",
    "shaft_mm",
    "mount",
    "weight_g"
   ],
   "rows": [
    [
     "Castle 1410 (540 class)",
     "car inrunner",
     36,
     52.7,
     "5 × 21",
     "2 × M3 on 25",
     237
    ],
    [
     "Hobbywing QuicRun 3650 G2",
     "car inrunner",
     36,
     52.8,
     3.175,
     null,
     190
    ],
    [
     "Hobbywing XeRun 3652 SD G2",
     "car inrunner",
     36,
     "52.5 / 56",
     "5 × 15",
     null,
     192
    ],
    [
     "Hobbywing EZRun 4274",
     "1/8 car",
     42,
     74,
     5,
     null,
     418
    ],
    [
     "Hobbywing EZRun 4268",
     "1/8 car",
     42,
     68,
     5,
     null,
     343
    ],
    [
     "Castle 1515",
     "1/8 car",
     "40 (41.4 fins)",
     75.4,
     "5 × 20",
     "3 and 4 holes at 25",
     null
    ],
    [
     "SunnySky X2212",
     "plane outrunner",
     27.5,
     30,
     3.175,
     "cross mount",
     57
    ],
    [
     "SunnySky X2216 V3",
     "plane outrunner",
     27.7,
     34,
     null,
     "cross mount",
     68
    ],
    [
     "T-Motor AT2826 long shaft",
     "plane outrunner",
     35.2,
     69.5,
     5,
     null,
     175
    ],
    [
     "T-Motor MN3508 (retailer copy)",
     "multirotor",
     41.8,
     26.5,
     4,
     null,
     82
    ],
    [
     "SunnySky X4110S",
     "outrunner",
     48.2,
     30.5,
     4,
     null,
     149
    ],
    [
     "Flipsky 6374",
     "robotics / e-skate",
     63.4,
     "77 (102 overall)",
     "8 keyed",
     "M4",
     860
    ]
   ]
  }
 },
 "sheet_text": "RC plane outrunners (2212, 2216, 2826, 3508, 4110, 6374) and car inrunners (540 / 3650, 4274, 1/8 scale) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/rc-plane-and-car-motors/  (CC BY 4.0)\nBasis: Maker spec pages (Castle Creations, Hobbywing, SunnySky, iFlight, Flipsky); T-Motor via retailer copies (marked)\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Car 540-class (36 mm can): Ø36 × about 52–53 mm, mounts with 2 × M3 on 25 mm (Castle states it). Shafts differ by model: 3.175 mm (Hobbywing 3650) or 5 mm (Castle 1410, XeRun 3652) — check yours.\n- 1/8 scale: Hobbywing 4274 Ø42 × 74, 4268 Ø42 × 68, Ø5 shaft; Castle 1515 Ø40 (41.4 over fins) × 75.4 with 3 and 4 holes at 25 mm.\n- Plane outrunners ship with a cross ('X') mount; its hole spacing appears only in maker drawings, so it is not listed. SunnySky X2212 Ø27.5 × 30 with a 3.175 shaft and 5 mm prop adapter.\n- Robotics / e-skate 6374: Ø63.4 × 77 body, Ø8 shaft with a 3 × 1.5 key (Flipsky); mount screws M4, pattern not published.\n- The 3650 and 4274 envelopes use the 2 × M3 on 25 pattern Castle publishes for 36 mm cans; Hobbywing does not state its pattern, so check before drilling.\n\nmotor  type  dia_mm  length_mm  shaft_mm  mount  weight_g\nCastle 1410 (540 class)  car inrunner  36  52.7  5 × 21  2 × M3 on 25  237\nHobbywing QuicRun 3650 G2  car inrunner  36  52.8  3.175  None  190\nHobbywing XeRun 3652 SD G2  car inrunner  36  52.5 / 56  5 × 15  None  192\nHobbywing EZRun 4274  1/8 car  42  74  5  None  418\nHobbywing EZRun 4268  1/8 car  42  68  5  None  343\nCastle 1515  1/8 car  40 (41.4 fins)  75.4  5 × 20  3 and 4 holes at 25  None\nSunnySky X2212  plane outrunner  27.5  30  3.175  cross mount  57\nSunnySky X2216 V3  plane outrunner  27.7  34  None  cross mount  68\nT-Motor AT2826 long shaft  plane outrunner  35.2  69.5  5  None  175\nT-Motor MN3508 (retailer copy)  multirotor  41.8  26.5  4  None  82\nSunnySky X4110S  outrunner  48.2  30.5  4  None  149\nFlipsky 6374  robotics / e-skate  63.4  77 (102 overall)  8 keyed  M4  860\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Castle Creations (spec via dealer): 1410 3800 kV — web — Publisher's page; dimensions are facts — https://es.wrekd.com/products/castle-creations-060-0066-00-motor-1410-3800kv-4-pole-sensored-brushless-motor\n- Hobbywing: QuicRun 3650 SD G2 — web — Publisher's page; dimensions are facts — https://www.hobbywing.com/en/products/quicrun-3650-sd-g259\n- Hobbywing: EZRun 4274 / 4268 — web — Publisher's page; dimensions are facts — https://www.hobbywing.com/en/products/ezrun-4274--4268253\n- Hobbywing Direct: XeRun 3652 SD G2 — web — Publisher's page; dimensions are facts — https://hobbywingdirect.com/products/xerun-3652sd-motor\n- RC Visions (Castle spec): Castle 1515 — web — Publisher's page; dimensions are facts — https://rcvisions.com/products/castle-creations-1515-sensored-4-pole-brushless-motor-2200kv\n- FlyingTech (SunnySky spec): SunnySky X2212 — web — Publisher's page; dimensions are facts — https://flyingtech.co.uk/product/sunnysky-x2212-13-980kv-ii-2-4s-multirotor-brushless-motor/\n- BuddyRC (SunnySky spec): SunnySky X2216 V3 — web — Publisher's page; dimensions are facts — https://buddyrc.com/products/sunnysky-x2216\n- LIGPOWER (T-Motor spec): AT2826 long shaft — web — Publisher's page; dimensions are facts — https://ligpower.com/product/at2826-long-shaft-fixed-wing-motor.html\n- GetFPV (T-Motor spec copy): MN3508 — web — Publisher's page; dimensions are facts — https://www.getfpv.com/tiger-motor-mn3508-16-700kv.html\n- ReadyMadeRC (SunnySky spec): X4110S — web — Publisher's page; dimensions are facts — https://www.readymaderc.com/products/details/86945-sunnysky-xs-high-power-x4110s-brushless-motor-400kv\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 5 parts): https://xemstudio.com/files/hardware/rc-plane-and-car-motors/index.json\nAPI: https://xemstudio.com/api/geometry?object=rc-plane-and-car-motors\n",
 "sources": [
  {
   "publisher": "Castle Creations (spec via dealer)",
   "title": "1410 3800 kV",
   "url": "https://es.wrekd.com/products/castle-creations-060-0066-00-motor-1410-3800kv-4-pole-sensored-brushless-motor",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Hobbywing",
   "title": "QuicRun 3650 SD G2",
   "url": "https://www.hobbywing.com/en/products/quicrun-3650-sd-g259",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Hobbywing",
   "title": "EZRun 4274 / 4268",
   "url": "https://www.hobbywing.com/en/products/ezrun-4274--4268253",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Hobbywing Direct",
   "title": "XeRun 3652 SD G2",
   "url": "https://hobbywingdirect.com/products/xerun-3652sd-motor",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "RC Visions (Castle spec)",
   "title": "Castle 1515",
   "url": "https://rcvisions.com/products/castle-creations-1515-sensored-4-pole-brushless-motor-2200kv",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "FlyingTech (SunnySky spec)",
   "title": "SunnySky X2212",
   "url": "https://flyingtech.co.uk/product/sunnysky-x2212-13-980kv-ii-2-4s-multirotor-brushless-motor/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "BuddyRC (SunnySky spec)",
   "title": "SunnySky X2216 V3",
   "url": "https://buddyrc.com/products/sunnysky-x2216",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "LIGPOWER (T-Motor spec)",
   "title": "AT2826 long shaft",
   "url": "https://ligpower.com/product/at2826-long-shaft-fixed-wing-motor.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "GetFPV (T-Motor spec copy)",
   "title": "MN3508",
   "url": "https://www.getfpv.com/tiger-motor-mn3508-16-700kv.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "ReadyMadeRC (SunnySky spec)",
   "title": "X4110S",
   "url": "https://www.readymaderc.com/products/details/86945-sunnysky-xs-high-power-x4110s-brushless-motor-400kv",
   "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": [
  "fpv-drone-motors",
  "dc-motor-540-size",
  "rc-lipo-batteries"
 ],
 "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 are 540 motor mounting holes?",
   "a": "2 × M3 on 25 mm (Castle 1410); the can is Ø36 mm."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "car-motor-36x52.7-castle-1410",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/rc-plane-and-car-motors/car-motor-36x52.7-castle-1410.step",
   "stl": "https://xemstudio.com/files/hardware/rc-plane-and-car-motors/car-motor-36x52.7-castle-1410.stl",
   "note": "36 mm car motor envelope (Castle 1410): Ø36 × 52.7, Ø5 × 21 shaft, 2 × M3 on 25"
  },
  {
   "file": "car-motor-36x52.8-3650",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/rc-plane-and-car-motors/car-motor-36x52.8-3650.step",
   "stl": "https://xemstudio.com/files/hardware/rc-plane-and-car-motors/car-motor-36x52.8-3650.stl",
   "note": "3650 car motor envelope: Ø36 × 52.8, Ø3.175 shaft (hole pattern assumed 2 × M3 on 25, see notes)"
  },
  {
   "file": "car-motor-42x74-4274",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/rc-plane-and-car-motors/car-motor-42x74-4274.step",
   "stl": "https://xemstudio.com/files/hardware/rc-plane-and-car-motors/car-motor-42x74-4274.stl",
   "note": "4274 1/8 car motor envelope: Ø42 × 74, Ø5 shaft (hole pattern assumed 2 × M3 on 25, see notes)"
  },
  {
   "file": "car-motor-plate-2xm3-25",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/rc-plane-and-car-motors/car-motor-plate-2xm3-25.step",
   "stl": "https://xemstudio.com/files/hardware/rc-plane-and-car-motors/car-motor-plate-2xm3-25.stl",
   "note": "Car motor plate: 2 × M3 on 25 mm, slotted ±3 mm for gear mesh"
  },
  {
   "file": "outrunner-2212-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/rc-plane-and-car-motors/outrunner-2212-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/rc-plane-and-car-motors/outrunner-2212-envelope.stl",
   "note": "2212 plane outrunner envelope (SunnySky X2212): Ø27.5 × 30, Ø3.175 shaft"
  }
 ],
 "markdown": "https://xemstudio.com/objects/rc-plane-and-car-motors/index.md"
}