{
 "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": "pro-boat-prb1645-flex-shaft-sonicwake-48",
 "name": "Pro Boat PRB1645 flex shaft, 12 in, 1/4 in flex with 3/16 in prop shaft (Sonicwake 48)",
 "kind": "modern",
 "category": "RC boats",
 "group": "Props and drive hardware",
 "year": null,
 "question": "What are the dimensions of the Pro Boat PRB1645 flex shaft?",
 "tags": [
  "rc boat",
  "radio control boat",
  "model boat",
  "hobby rc",
  "props and drive hardware"
 ],
 "aliases": [
  "prb1645",
  "sonicwake 48 flex shaft",
  "1/4 flex shaft 3/16 prop",
  "rc boat flex cable 1/4 inch",
  "3/16 prop shaft rc boat",
  "pro boat flex shaft 12 inch",
  "flexwelle 6,35 mm",
  "eje flexible 1/4 barco rc",
  "flexwelle rc boot"
 ],
 "overall_mm": {
  "length": 6.35,
  "width": 6.35,
  "height": 304.8
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/pro-boat-prb1645-flex-shaft-sonicwake-48/",
 "sheet_txt": "https://xemstudio.com/objects/pro-boat-prb1645-flex-shaft-sonicwake-48/sheet.txt",
 "sheet": {
  "basis": "Secondary source: OzRC (dealer) (copy of the maker's figures; the maker publishes none directly)",
  "overall_mm": {
   "length": 6.35,
   "width": 6.35,
   "height": 304.8
  },
  "notes": [
   "Replacement flex shaft for the Super Sonicwake 48: a 1/4 in flex cable stepping down to a 3/16 in prop shaft.",
   "Figures are from OzRC (dealer); the prop stub length and drive-dog end are not published.",
   "True size, no printing tolerance added. Only published numbers are used; anything not published is said so.",
   "Secondary source: the numbers come from a retailer or magazine copy of the maker's specification."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "Flex shaft length",
     "12 in (304.8 mm)"
    ],
    [
     "Flex shaft diameter",
     "1/4 in (6.35 mm)"
    ],
    [
     "Prop shaft diameter",
     "3/16 in (4.76 mm)"
    ],
    [
     "Fits",
     "Pro Boat Super Sonicwake 48"
    ],
    [
     "Part number",
     "PRB1645"
    ]
   ]
  }
 },
 "sheet_text": "Pro Boat PRB1645 flex shaft, 12 in, 1/4 in flex with 3/16 in prop shaft (Sonicwake 48) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/pro-boat-prb1645-flex-shaft-sonicwake-48/  (sheet CC BY 4.0)\nBasis: Secondary source: OzRC (dealer) (copy of the maker's figures; the maker publishes none directly)\nCatalog version: 2026-10-20\n\nOverall (mm): length 6.35, width 6.35, height 304.8\n- Replacement flex shaft for the Super Sonicwake 48: a 1/4 in flex cable stepping down to a 3/16 in prop shaft.\n- Figures are from OzRC (dealer); the prop stub length and drive-dog end are not published.\n- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.\n- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.\n\ndimension  value\nFlex shaft length  12 in (304.8 mm)\nFlex shaft diameter  1/4 in (6.35 mm)\nProp shaft diameter  3/16 in (4.76 mm)\nFits  Pro Boat Super Sonicwake 48\nPart number  PRB1645\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- OzRC (dealer): Pro Boat Flex Shaft Sonicwake 48 12in 1/4in Flex 3/16in Prop PRB1645 — web — Publisher's page; dimensions are facts — https://ozrc.com.au/products/pro-boat-flex-shaft-sonicwake-48-12in-1-4in-flex-3-16in-prop-prb1645\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/pro-boat-prb1645-flex-shaft-sonicwake-48/index.json\nAPI: https://xemstudio.com/api/geometry?object=pro-boat-prb1645-flex-shaft-sonicwake-48\n",
 "sources": [
  {
   "publisher": "OzRC (dealer)",
   "title": "Pro Boat Flex Shaft Sonicwake 48 12in 1/4in Flex 3/16in Prop PRB1645",
   "url": "https://ozrc.com.au/products/pro-boat-flex-shaft-sonicwake-48-12in-1-4in-flex-3-16in-prop-prb1645",
   "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": [
  "romarin-stern-tube-90mm-m4-ro1441",
  "romarin-stern-tube-175mm-m4-ro1442",
  "romarin-stern-tube-235mm-m4-ro1444",
  "raboesch-shaft-m5-ball-bearing-290mm-rb301-08"
 ],
 "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 prop bore fits the PRB1645 shaft?",
   "a": "Props bored for a 3/16 in (4.76 mm) shaft."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "pro-boat-prb1645-flex-shaft-sonicwake-48-flex-cable",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/pro-boat-prb1645-flex-shaft-sonicwake-48/pro-boat-prb1645-flex-shaft-sonicwake-48-flex-cable.step",
   "stl": "https://xemstudio.com/files/hardware/pro-boat-prb1645-flex-shaft-sonicwake-48/pro-boat-prb1645-flex-shaft-sonicwake-48-flex-cable.stl",
   "note": "Flex cable Ø6.35 × 304.8 mm (prop-shaft stub length not published, not modelled)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/pro-boat-prb1645-flex-shaft-sonicwake-48/index.md"
}