{
 "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": "tapered-roller-bearings-inch-lm11949-l44649-lm67048",
 "name": "Tapered roller bearing sets, inch: LM11949 / LM11910, LM12749 / LM12710, L44649 / L44610, LM67048 / LM67010 (Timken): bore, OD, T, B, C and shoulder diameters",
 "kind": "standard",
 "category": "Hardware",
 "group": "Bearings, rails & motion",
 "year": null,
 "question": "What are the dimensions of the Timken LM11949 / LM11910, LM12749 / LM12710, L44649 / L44610 and LM67048 / LM67010 tapered roller bearings: bore, OD, cone width, cup width, overall width and backing diameters?",
 "tags": [
  "tapered roller bearing",
  "trailer bearing",
  "wheel bearing",
  "lm11949",
  "l44649",
  "lm67048",
  "lm12749",
  "cone and cup",
  "inch bearing",
  "hub bearing",
  "tool"
 ],
 "aliases": [
  "LM11949 LM11910 dimensions",
  "LM12749 LM12710 dimensions",
  "L44649 L44610 dimensions",
  "LM67048 LM67010 dimensions",
  "L44649 bearing size",
  "LM67048 bearing size",
  "LM11949 bearing size",
  "trailer wheel bearing size",
  "trailer bearing dimensions",
  "1-1/16 tapered roller bearing",
  "1-1/4 tapered roller bearing",
  "3/4 tapered roller bearing LM11949",
  "tapered roller bearing set inch",
  "bearing cone and cup set dimensions",
  "L44649 L44610 backing diameter",
  "LM67048 shoulder diameter",
  "LM12749 bore 21.986",
  "timken lm11949 cad",
  "L44610 cup OD 1.98"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "not-scanned",
 "les": false,
 "free_files": 0,
 "url": "https://xemstudio.com/objects/tapered-roller-bearings-inch-lm11949-l44649-lm67048/",
 "sheet_txt": "https://xemstudio.com/objects/tapered-roller-bearings-inch-lm11949-l44649-lm67048/sheet.txt",
 "sheet": {
  "basis": "Timken's own specification sheets and part page (mm and inch, checked 25.4), agreeing with four distributor listings; Timken CAD part pages linked",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Inch-series tapered roller bearings are sold as a cone (inner ring with rollers) and a cup (outer ring), each with its own number: LM11949 is the cone and LM11910 the cup. These four sets are common in trailer hubs, small wheels and light automotive uses; the table is transposed so the four sets sit side by side. The two LM119 / LM127 sets share the same cup size (Ø45.237 x 12.065) and cone width and differ only in bore (19.050 and 21.986).",
   "Numbers: Timken's own data. LM11949 / LM11910, LM12749 / LM12710 and L44649 / L44610 are Timken specification sheets (hosted by Purvis Industries); LM67048 / LM67010 is Timken's part page on cad.timken.com. Every mm value equals the printed inch value times 25.4 (checked). Cross-checks that agree: Acorn and bearings-online (LM11949: 19.05 x 45.24 x 15.49, C 0.4750 in), eIndustrial and Rubix (LM12749: 0.8656 in bore, 1.781 in OD, 15.494 wide), RS Components (L44649: 26.98 x 50.29; LM67048: 31.75 x 59.13).",
   "T is not the cone width. On these sets the cone is wider than the overall width T (B > T); T is Timken's 'bearing width', the overall width of the cone-and-cup set as assembled. The radius rows are as Timken prints them: 'to clear' radii R (cone) and r (cup) on three sets, and 'max shaft fillet radius' / 'max housing fillet radius' on LM67048 / LM67010 (0.140 and 0.050 in; the page prints 3.600 and 1.27 mm, while 0.140 in is 3.556 mm, and the L44649 sheet prints 3.56 for the same 0.14 in). Backing diameters are Timken's recommended shoulder diameters for the shaft (da, db) and housing (Da, Db); they are the numbers to design a shoulder against.",
   "Files: none. The cone and cup raceway cones are not boundary dimensions, so there is no ring envelope to draw from these numbers; Timken's own part pages carry 3D and 2D CAD views (link below).",
   "Left out: the other sets people ask for (25580 / 25520, L68149 / L68111, 14125A / 14276, 15101 / 15245 and so on: no data sheet was read), the metric-bore inch-series conversions, load ratings, and Timken's fitting practice (the online tool; the Timken guide read only points to it and does not print class values)."
  ],
  "table": {
   "columns": [
    "dimension",
    "LM11949 / LM11910",
    "LM12749 / LM12710",
    "L44649 / L44610",
    "LM67048 / LM67010"
   ],
   "rows": [
    [
     "cone / cup",
     "LM11949 / LM11910",
     "LM12749 / LM12710",
     "L44649 / L44610",
     "LM67048 / LM67010"
    ],
    [
     "bore d, mm",
     "19.050",
     "21.986",
     "26.988",
     "31.750"
    ],
    [
     "bore d, in",
     "0.7500",
     "0.8656",
     "1.0625",
     "1.2500"
    ],
    [
     "cup OD D, mm",
     "45.237",
     "45.237",
     "50.292",
     "59.131"
    ],
    [
     "cup OD D, in",
     "1.7810",
     "1.7810",
     "1.9800",
     "2.3280"
    ],
    [
     "cone width B, mm",
     "16.637",
     "16.637",
     "14.732",
     "16.764"
    ],
    [
     "cone width B, in",
     "0.6550",
     "0.6550",
     "0.5800",
     "0.6600"
    ],
    [
     "cup width C, mm",
     "12.065",
     "12.065",
     "10.668",
     "11.811"
    ],
    [
     "cup width C, in",
     "0.4750",
     "0.4750",
     "0.4200",
     "0.4650"
    ],
    [
     "overall width T, mm",
     "15.494",
     "15.494",
     "14.224",
     "15.875"
    ],
    [
     "overall width T, in",
     "0.6100",
     "0.6100",
     "0.5600",
     "0.6250"
    ],
    [
     "cone backface 'to clear' radius R / max shaft fillet, mm (as printed)",
     "1.27",
     "1.27",
     "3.56",
     "3.6"
    ],
    [
     "cup backface 'to clear' radius r / max housing fillet, mm",
     "1.27",
     "1.27",
     "1.27",
     "1.27"
    ],
    [
     "cone frontface backing Ø da, mm",
     "23.62",
     "25.91",
     "30.99",
     "36"
    ],
    [
     "cone backface backing Ø db, mm",
     "24.89",
     "27.43",
     "37.59",
     "42.5"
    ],
    [
     "cup frontface backing Ø Da, mm",
     "41.9",
     "42.4",
     "47.5",
     "55.9"
    ],
    [
     "cup backface backing Ø Db, mm",
     "39.62",
     "39.62",
     "44.45",
     "52.07"
    ],
    [
     "cage-cone frontface clearance Ab, mm",
     "1.3",
     "1",
     "1.3",
     "1.3"
    ],
    [
     "cage-cone backface clearance Aa, mm",
     "-0.3",
     "0.3",
     "0.5",
     "0.3"
    ],
    [
     "effective center location a, mm",
     "-5.6",
     "-5.3",
     "-3.3",
     "-3"
    ],
    [
     "ISO factor e",
     "0.3",
     "0.31",
     "0.37",
     "0.41"
    ],
    [
     "ISO factor Y",
     "2",
     "1.96",
     "1.6",
     "1.46"
    ]
   ]
  }
 },
 "sheet_text": "Tapered roller bearing sets, inch: LM11949 / LM11910, LM12749 / LM12710, L44649 / L44610, LM67048 / LM67010 (Timken): bore, OD, T, B, C and shoulder diameters — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/tapered-roller-bearings-inch-lm11949-l44649-lm67048/  (sheet CC BY 4.0)\nBasis: Timken's own specification sheets and part page (mm and inch, checked 25.4), agreeing with four distributor listings; Timken CAD part pages linked\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Inch-series tapered roller bearings are sold as a cone (inner ring with rollers) and a cup (outer ring), each with its own number: LM11949 is the cone and LM11910 the cup. These four sets are common in trailer hubs, small wheels and light automotive uses; the table is transposed so the four sets sit side by side. The two LM119 / LM127 sets share the same cup size (Ø45.237 x 12.065) and cone width and differ only in bore (19.050 and 21.986).\n- Numbers: Timken's own data. LM11949 / LM11910, LM12749 / LM12710 and L44649 / L44610 are Timken specification sheets (hosted by Purvis Industries); LM67048 / LM67010 is Timken's part page on cad.timken.com. Every mm value equals the printed inch value times 25.4 (checked). Cross-checks that agree: Acorn and bearings-online (LM11949: 19.05 x 45.24 x 15.49, C 0.4750 in), eIndustrial and Rubix (LM12749: 0.8656 in bore, 1.781 in OD, 15.494 wide), RS Components (L44649: 26.98 x 50.29; LM67048: 31.75 x 59.13).\n- T is not the cone width. On these sets the cone is wider than the overall width T (B > T); T is Timken's 'bearing width', the overall width of the cone-and-cup set as assembled. The radius rows are as Timken prints them: 'to clear' radii R (cone) and r (cup) on three sets, and 'max shaft fillet radius' / 'max housing fillet radius' on LM67048 / LM67010 (0.140 and 0.050 in; the page prints 3.600 and 1.27 mm, while 0.140 in is 3.556 mm, and the L44649 sheet prints 3.56 for the same 0.14 in). Backing diameters are Timken's recommended shoulder diameters for the shaft (da, db) and housing (Da, Db); they are the numbers to design a shoulder against.\n- Files: none. The cone and cup raceway cones are not boundary dimensions, so there is no ring envelope to draw from these numbers; Timken's own part pages carry 3D and 2D CAD views (link below).\n- Left out: the other sets people ask for (25580 / 25520, L68149 / L68111, 14125A / 14276, 15101 / 15245 and so on: no data sheet was read), the metric-bore inch-series conversions, load ratings, and Timken's fitting practice (the online tool; the Timken guide read only points to it and does not print class values).\n\ndimension  LM11949 / LM11910  LM12749 / LM12710  L44649 / L44610  LM67048 / LM67010\ncone / cup  LM11949 / LM11910  LM12749 / LM12710  L44649 / L44610  LM67048 / LM67010\nbore d, mm  19.050  21.986  26.988  31.750\nbore d, in  0.7500  0.8656  1.0625  1.2500\ncup OD D, mm  45.237  45.237  50.292  59.131\ncup OD D, in  1.7810  1.7810  1.9800  2.3280\ncone width B, mm  16.637  16.637  14.732  16.764\ncone width B, in  0.6550  0.6550  0.5800  0.6600\ncup width C, mm  12.065  12.065  10.668  11.811\ncup width C, in  0.4750  0.4750  0.4200  0.4650\noverall width T, mm  15.494  15.494  14.224  15.875\noverall width T, in  0.6100  0.6100  0.5600  0.6250\ncone backface 'to clear' radius R / max shaft fillet, mm (as printed)  1.27  1.27  3.56  3.6\ncup backface 'to clear' radius r / max housing fillet, mm  1.27  1.27  1.27  1.27\ncone frontface backing Ø da, mm  23.62  25.91  30.99  36\ncone backface backing Ø db, mm  24.89  27.43  37.59  42.5\ncup frontface backing Ø Da, mm  41.9  42.4  47.5  55.9\ncup backface backing Ø Db, mm  39.62  39.62  44.45  52.07\ncage-cone frontface clearance Ab, mm  1.3  1  1.3  1.3\ncage-cone backface clearance Aa, mm  -0.3  0.3  0.5  0.3\neffective center location a, mm  -5.6  -5.3  -3.3  -3\nISO factor e  0.3  0.31  0.37  0.41\nISO factor Y  2  1.96  1.6  1.46\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Timken (specification sheet via Purvis Industries): LM11949 / LM11910: d 19.050, D 45.237, B 16.637, C 12.065, T 15.494, R 1.270, r 1.27, backing diameters, e, Y — web — Publisher's page; dimensions are facts — https://www.purvisindustries.com/ASSETS/DOCUMENTS/ITEMS/EN/Timken_LM11949_2_Specification_Sheet.pdf\n- Timken (specification sheet via Purvis Industries): LM12749 / LM12710: d 21.986, D 45.237, B 16.637, C 12.065, T 15.494, backing diameters, e, Y — web — Publisher's page; dimensions are facts — https://www.purvisindustries.com/ASSETS/DOCUMENTS/ITEMS/EN/Timken_LM12749_2_Specification_Sheet.pdf\n- Timken (specification sheet via Purvis Industries): L44649 / L44610: d 26.988, D 50.292, B 14.732, C 10.668, T 14.224, R 3.560, r 1.27, backing diameters, e, Y — web — Publisher's page; dimensions are facts — https://www.purvisindustries.com/ASSETS/DOCUMENTS/ITEMS/EN/Timken_L44649_2_Specification_Sheet.pdf\n- Timken (part page, cad.timken.com): LM67048 / LM67010: d 31.750, D 59.131, B 16.764, C 11.811, T 15.875, fillet radii, backing diameters, e, Y; page offers 3D / 2D CAD views — web — Publisher's page; dimensions are facts — https://cad.timken.com/item/tapered-roller-bearings-ts-tapered-single-/tapered-roller-bearings-ts-tapered-single-imperi-2/lm67048-lm67010\n- Acorn Industrial (distributor): LM11949 / LM11910: 19.05 x 45.24 x 15.49 mm (cross-check) — web — Publisher's page; dimensions are facts — https://www.acorn-ind.co.uk/p/timken/single-row-tapered-roller-bearings/lm11949/lm11910-timken\n- bearings-online.co.uk (distributor): LM11949 / LM11910: d 0.7500 in, D 1.7810 in, T 0.6100 in, C 0.4750 in (cross-check) — web — Publisher's page; dimensions are facts — https://www.bearings-online.co.uk/item/1382/TIMKEN/LM11949LM11910-TIMKEN-Tapered-Roller-Bearing.html\n- eIndustrial Solutions (distributor): LM12749 / LM12710: bore 0.8656 in, OD 1.781 in, width 0.61 in (cross-check) — web — Publisher's page; dimensions are facts — https://www.eindustrialsolutions.com/timken-lm12749-lm12710-light-medium-duty-tapered-roller-bearing-0-8656-inch-diameter-bore-1-781-inch-od\n- RS Components (listing title): Timken L44649/L44610: 26.98 mm ID, 50.29 mm OD (cross-check) — web — Publisher's page; dimensions are facts — https://ph.rs-online.com/web/p/roller-bearings/1347431\n- RS Components (listing title): Timken LM67048/LM67010: 31.75 mm ID, 59.13 mm OD (cross-check) — web — Publisher's page; dimensions are facts — https://th.rs-online.com/web/p/roller-bearings/1347430\n- Timken (part pages with CAD views): Timken part page with dimensions and 3D / 2D CAD views for each cone, cup and set (shown here: LM67048 / LM67010) — web — Publisher's page; dimensions are facts — https://cad.timken.com/item/tapered-roller-bearings-ts-tapered-single-/tapered-roller-bearings-ts-tapered-single-imperi-2/lm67048-lm67010\n\nNo true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.\nAPI: https://xemstudio.com/api/geometry?object=tapered-roller-bearings-inch-lm11949-l44649-lm67048\n",
 "sources": [
  {
   "publisher": "Timken (specification sheet via Purvis Industries)",
   "title": "LM11949 / LM11910: d 19.050, D 45.237, B 16.637, C 12.065, T 15.494, R 1.270, r 1.27, backing diameters, e, Y",
   "url": "https://www.purvisindustries.com/ASSETS/DOCUMENTS/ITEMS/EN/Timken_LM11949_2_Specification_Sheet.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Timken (specification sheet via Purvis Industries)",
   "title": "LM12749 / LM12710: d 21.986, D 45.237, B 16.637, C 12.065, T 15.494, backing diameters, e, Y",
   "url": "https://www.purvisindustries.com/ASSETS/DOCUMENTS/ITEMS/EN/Timken_LM12749_2_Specification_Sheet.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Timken (specification sheet via Purvis Industries)",
   "title": "L44649 / L44610: d 26.988, D 50.292, B 14.732, C 10.668, T 14.224, R 3.560, r 1.27, backing diameters, e, Y",
   "url": "https://www.purvisindustries.com/ASSETS/DOCUMENTS/ITEMS/EN/Timken_L44649_2_Specification_Sheet.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Timken (part page, cad.timken.com)",
   "title": "LM67048 / LM67010: d 31.750, D 59.131, B 16.764, C 11.811, T 15.875, fillet radii, backing diameters, e, Y; page offers 3D / 2D CAD views",
   "url": "https://cad.timken.com/item/tapered-roller-bearings-ts-tapered-single-/tapered-roller-bearings-ts-tapered-single-imperi-2/lm67048-lm67010",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Acorn Industrial (distributor)",
   "title": "LM11949 / LM11910: 19.05 x 45.24 x 15.49 mm (cross-check)",
   "url": "https://www.acorn-ind.co.uk/p/timken/single-row-tapered-roller-bearings/lm11949/lm11910-timken",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "bearings-online.co.uk (distributor)",
   "title": "LM11949 / LM11910: d 0.7500 in, D 1.7810 in, T 0.6100 in, C 0.4750 in (cross-check)",
   "url": "https://www.bearings-online.co.uk/item/1382/TIMKEN/LM11949LM11910-TIMKEN-Tapered-Roller-Bearing.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "eIndustrial Solutions (distributor)",
   "title": "LM12749 / LM12710: bore 0.8656 in, OD 1.781 in, width 0.61 in (cross-check)",
   "url": "https://www.eindustrialsolutions.com/timken-lm12749-lm12710-light-medium-duty-tapered-roller-bearing-0-8656-inch-diameter-bore-1-781-inch-od",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "RS Components (listing title)",
   "title": "Timken L44649/L44610: 26.98 mm ID, 50.29 mm OD (cross-check)",
   "url": "https://ph.rs-online.com/web/p/roller-bearings/1347431",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "RS Components (listing title)",
   "title": "Timken LM67048/LM67010: 31.75 mm ID, 59.13 mm OD (cross-check)",
   "url": "https://th.rs-online.com/web/p/roller-bearings/1347430",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Timken (part pages with CAD views)",
   "title": "Timken part page with dimensions and 3D / 2D CAD views for each cone, cup and set (shown here: LM67048 / LM67010)",
   "url": "https://cad.timken.com/item/tapered-roller-bearings-ts-tapered-single-/tapered-roller-bearings-ts-tapered-single-imperi-2/lm67048-lm67010",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "tapered-roller-bearings-metric-iso-355",
  "ball-bearings-metric",
  "deep-groove-ball-bearings-series",
  "ball-bearings-inch-1600-series",
  "inch-ball-bearings-r-series-r188-r144-r166",
  "metric-shafts",
  "retaining-rings-din-471-external"
 ],
 "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": "cone frontface backing Ø da",
   "exact": "Ø23.62 / 25.91 / 30.99 / 36 (LM11949 / LM12749 / L44649 / LM67048)",
   "mates": "shaft shoulder (front) that the cone's small end sits against: Timken's backing diameter; make the shoulder at least this",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "cone backface backing Ø db",
   "exact": "Ø24.89 / 27.43 / 37.59 / 42.5",
   "mates": "shaft shoulder (back): Timken's backing diameter",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "cup frontface backing Ø Da",
   "exact": "Ø41.90 / 42.40 / 47.50 / 55.90",
   "mates": "housing shoulder (front) for the cup: Timken's backing diameter",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "cup backface backing Ø Db",
   "exact": "Ø39.62 / 39.62 / 44.45 / 52.07",
   "mates": "housing shoulder (back) for the cup: Timken's backing diameter",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "corner radii R, r (max fillet)",
   "exact": "R 1.270 / 1.270 / 3.560 / 3.600 mm, r 1.27 mm",
   "mates": "shaft and housing corner fillets must not exceed these so the cone and cup seat on their faces",
   "fit": "designed",
   "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": "What are the dimensions of an LM11949 / LM11910 bearing?",
   "a": "Bore 19.050 mm (0.7500 in), OD 45.237 mm (1.7810 in), cone width 16.637, cup width 12.065, overall width T 15.494 mm."
  },
  {
   "q": "What are the dimensions of an L44649 / L44610 bearing?",
   "a": "Bore 26.988 mm (1.0625 in), OD 50.292 mm (1.9800 in), cone width 14.732, cup width 10.668, T 14.224 mm."
  },
  {
   "q": "What are the dimensions of an LM67048 / LM67010 bearing?",
   "a": "Bore 31.750 mm (1-1/4 in), OD 59.131 mm (2.3280 in), cone width 16.764, cup width 11.811, T 15.875 mm."
  },
  {
   "q": "What are the dimensions of an LM12749 / LM12710 bearing?",
   "a": "Bore 21.986 mm (0.8656 in), OD 45.237 mm (1.7810 in), cone width 16.637, cup width 12.065, T 15.494 mm."
  },
  {
   "q": "What shoulder diameters do these bearings need?",
   "a": "Timken's backing diameters are in the table: for L44649 / L44610, shaft shoulders 30.99 mm (front) and 37.59 mm (back), housing shoulders 47.50 mm (front) and 44.45 mm (back)."
  }
 ],
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 "markdown": "https://xemstudio.com/objects/tapered-roller-bearings-inch-lm11949-l44649-lm67048/index.md"
}