{
 "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": "sae-straight-side-splines-4-6-10-16",
 "name": "SAE straight-side splines, 4, 6, 10 and 16 splines: major diameter D, spline width W and root diameter d (fit A) + example shaft STEP/STL",
 "kind": "standard",
 "category": "Hardware",
 "group": "Bearings, rails & motion",
 "year": null,
 "question": "What are the major diameter, spline width and root diameter of an SAE 10-spline shaft, for example a 1 in nominal size?",
 "tags": [
  "spline",
  "sae spline",
  "straight spline",
  "parallel spline",
  "10 spline",
  "6 spline",
  "16 spline",
  "4 spline",
  "sae j499",
  "power transmission"
 ],
 "aliases": [
  "sae spline dimensions",
  "sae 10 spline 1 inch",
  "sae 6 spline shaft",
  "sae 16 spline 2 inch",
  "sae 4 spline 3/4",
  "straight side spline dimensions",
  "parallel side spline table",
  "sae j499",
  "10 spline shaft major diameter",
  "6b spline",
  "10b spline",
  "16b spline",
  "spline shaft step file sae",
  "spline width w 10 spline",
  "sae spline root diameter"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 14,
 "url": "https://xemstudio.com/objects/sae-straight-side-splines-4-6-10-16/",
 "sheet_txt": "https://xemstudio.com/objects/sae-straight-side-splines-4-6-10-16/sheet.txt",
 "sheet": {
  "basis": "Machinery's Handbook 31st ed. Tables 18 to 21 (SAE standard 4, 6, 10, 16 spline fittings, fit A, external member, maximum values), proportions of every row checked against its spline count; inch values with mm equivalents; shaft sections drawn from them",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "SAE straight-side (parallel-side) splines, the 4-, 6-, 10- and 16-spline series of SAE J499 / the older SAE spline fittings: parallel-sided splines of width W on a root cylinder d inside a major cylinder D. The numbers are Machinery's Handbook Tables 18 to 21 for fit A (permanent fit), external member, maximum values (D max, W max, d max); 4 splines 3/4 to 3 in, 6 splines 3/4 to 3 in, 10 splines 3/4 to 6 in, 16 splines 2 to 6 in. Each row follows its spline count's proportions to the printed rounding (checked on every row): 4 splines W = 0.241 D and d = 0.850 D; 6 splines W = 0.250 D, d = 0.900 D; 10 splines W = 0.156 D, d = 0.910 D; 16 splines W = 0.098 D, d = 0.910 D (the handbook's Table 22 gives these as formulas; its text could not be read in full, so the ratios here are read back from the table rows).",
   "Fits: the standard also gives fit B (to slide, no load) and, for 6 to 16 splines, fit C (to slide under load), with smaller d and wider clearances; the extraction of those columns was ambiguous, so only fit A is tabulated. The internal member (hub) values are not tabulated either. Tolerance: shafts 3/4 to 1-3/4 in are −0.001 in and 2 to 3 in −0.002 in on the major diameter (Engineers Edge note on the SAE table); the table values here are the maxima.",
   "Files: 14 example shaft sections, as one extruded solid: a root cylinder of Ø d with N parallel splines of width W out to Ø D, drawn from the maximum values; length equal to the major diameter (an example, not a standard length); no chamfers or corner radii. Radii at spline corners should not exceed 0.015 in and the spline should not be more than 0.006 in per foot out of parallel with the shaft axis (Machinery's Handbook text).",
   "Not on this page: torque ratings (the handbook prints them: for example 10 splines, 1 in nominal, 215 in-lb at fit A), fits B and C, the internal member, 5/8 in and smaller sizes. SAE J499 is sold by SAE and is linked, not reproduced."
  ],
  "table": {
   "columns": [
    "splines",
    "nominal Ø, in",
    "major Ø D (max), in (mm)",
    "spline width W (max), in (mm)",
    "root Ø d (max), in (mm)",
    "spline depth (D − d) / 2, in (derived)"
   ],
   "rows": [
    [
     4,
     "3/4",
     "0.750 (19.05)",
     "0.181 (4.60)",
     "0.637 (16.18)",
     "0.0565"
    ],
    [
     4,
     "7/8",
     "0.875 (22.22)",
     "0.211 (5.36)",
     "0.744 (18.90)",
     "0.0655"
    ],
    [
     4,
     "1",
     "1.000 (25.40)",
     "0.241 (6.12)",
     "0.850 (21.59)",
     "0.0750"
    ],
    [
     4,
     "1 1/8",
     "1.125 (28.57)",
     "0.271 (6.88)",
     "0.956 (24.28)",
     "0.0845"
    ],
    [
     4,
     "1 1/4",
     "1.250 (31.75)",
     "0.301 (7.65)",
     "1.062 (26.97)",
     "0.0940"
    ],
    [
     4,
     "1 3/8",
     "1.375 (34.92)",
     "0.331 (8.41)",
     "1.169 (29.69)",
     "0.1030"
    ],
    [
     4,
     "1 1/2",
     "1.500 (38.10)",
     "0.361 (9.17)",
     "1.275 (32.38)",
     "0.1125"
    ],
    [
     4,
     "1 5/8",
     "1.625 (41.27)",
     "0.391 (9.93)",
     "1.381 (35.08)",
     "0.1220"
    ],
    [
     4,
     "1 3/4",
     "1.750 (44.45)",
     "0.422 (10.72)",
     "1.487 (37.77)",
     "0.1315"
    ],
    [
     4,
     "2",
     "2.000 (50.80)",
     "0.482 (12.24)",
     "1.700 (43.18)",
     "0.1500"
    ],
    [
     4,
     "2 1/4",
     "2.250 (57.15)",
     "0.542 (13.77)",
     "1.912 (48.56)",
     "0.1690"
    ],
    [
     4,
     "2 1/2",
     "2.500 (63.50)",
     "0.602 (15.29)",
     "2.125 (53.97)",
     "0.1875"
    ],
    [
     4,
     "3",
     "3.000 (76.20)",
     "0.723 (18.36)",
     "2.550 (64.77)",
     "0.2250"
    ],
    [
     6,
     "3/4",
     "0.750 (19.05)",
     "0.188 (4.78)",
     "0.675 (17.14)",
     "0.0375"
    ],
    [
     6,
     "7/8",
     "0.875 (22.22)",
     "0.219 (5.56)",
     "0.788 (20.02)",
     "0.0435"
    ],
    [
     6,
     "1",
     "1.000 (25.40)",
     "0.250 (6.35)",
     "0.900 (22.86)",
     "0.0500"
    ],
    [
     6,
     "1 1/8",
     "1.125 (28.57)",
     "0.281 (7.14)",
     "1.013 (25.73)",
     "0.0560"
    ],
    [
     6,
     "1 1/4",
     "1.250 (31.75)",
     "0.313 (7.95)",
     "1.125 (28.57)",
     "0.0625"
    ],
    [
     6,
     "1 3/8",
     "1.375 (34.92)",
     "0.344 (8.74)",
     "1.238 (31.45)",
     "0.0685"
    ],
    [
     6,
     "1 1/2",
     "1.500 (38.10)",
     "0.375 (9.52)",
     "1.350 (34.29)",
     "0.0750"
    ],
    [
     6,
     "1 5/8",
     "1.625 (41.27)",
     "0.406 (10.31)",
     "1.463 (37.16)",
     "0.0810"
    ],
    [
     6,
     "1 3/4",
     "1.750 (44.45)",
     "0.438 (11.13)",
     "1.575 (40.00)",
     "0.0875"
    ],
    [
     6,
     "2",
     "2.000 (50.80)",
     "0.500 (12.70)",
     "1.800 (45.72)",
     "0.1000"
    ],
    [
     6,
     "2 1/4",
     "2.250 (57.15)",
     "0.563 (14.30)",
     "2.025 (51.43)",
     "0.1125"
    ],
    [
     6,
     "2 1/2",
     "2.500 (63.50)",
     "0.625 (15.88)",
     "2.250 (57.15)",
     "0.1250"
    ],
    [
     6,
     "3",
     "3.000 (76.20)",
     "0.750 (19.05)",
     "2.700 (68.58)",
     "0.1500"
    ],
    [
     10,
     "3/4",
     "0.750 (19.05)",
     "0.117 (2.97)",
     "0.683 (17.35)",
     "0.0335"
    ],
    [
     10,
     "7/8",
     "0.875 (22.22)",
     "0.137 (3.48)",
     "0.796 (20.22)",
     "0.0395"
    ],
    [
     10,
     "1",
     "1.000 (25.40)",
     "0.156 (3.96)",
     "0.910 (23.11)",
     "0.0450"
    ],
    [
     10,
     "1 1/8",
     "1.125 (28.57)",
     "0.176 (4.47)",
     "1.024 (26.01)",
     "0.0505"
    ],
    [
     10,
     "1 1/4",
     "1.250 (31.75)",
     "0.195 (4.95)",
     "1.138 (28.91)",
     "0.0560"
    ],
    [
     10,
     "1 3/8",
     "1.375 (34.92)",
     "0.215 (5.46)",
     "1.251 (31.78)",
     "0.0620"
    ],
    [
     10,
     "1 1/2",
     "1.500 (38.10)",
     "0.234 (5.94)",
     "1.365 (34.67)",
     "0.0675"
    ],
    [
     10,
     "1 5/8",
     "1.625 (41.27)",
     "0.254 (6.45)",
     "1.479 (37.57)",
     "0.0730"
    ],
    [
     10,
     "1 3/4",
     "1.750 (44.45)",
     "0.273 (6.93)",
     "1.593 (40.46)",
     "0.0785"
    ],
    [
     10,
     "2",
     "2.000 (50.80)",
     "0.312 (7.92)",
     "1.820 (46.23)",
     "0.0900"
    ],
    [
     10,
     "2 1/4",
     "2.250 (57.15)",
     "0.351 (8.92)",
     "2.048 (52.02)",
     "0.1010"
    ],
    [
     10,
     "2 1/2",
     "2.500 (63.50)",
     "0.390 (9.91)",
     "2.275 (57.78)",
     "0.1125"
    ],
    [
     10,
     "3",
     "3.000 (76.20)",
     "0.468 (11.89)",
     "2.730 (69.34)",
     "0.1350"
    ],
    [
     10,
     "3 1/2",
     "3.500 (88.90)",
     "0.546 (13.87)",
     "3.185 (80.90)",
     "0.1575"
    ],
    [
     10,
     "4",
     "4.000 (101.60)",
     "0.624 (15.85)",
     "3.640 (92.46)",
     "0.1800"
    ],
    [
     10,
     "4 1/2",
     "4.500 (114.30)",
     "0.702 (17.83)",
     "4.095 (104.01)",
     "0.2025"
    ],
    [
     10,
     "5",
     "5.000 (127.00)",
     "0.780 (19.81)",
     "4.550 (115.57)",
     "0.2250"
    ],
    [
     10,
     "5 1/2",
     "5.500 (139.70)",
     "0.858 (21.79)",
     "5.005 (127.13)",
     "0.2475"
    ],
    [
     10,
     "6",
     "6.000 (152.40)",
     "0.936 (23.77)",
     "5.460 (138.68)",
     "0.2700"
    ],
    [
     16,
     "2",
     "2.000 (50.80)",
     "0.196 (4.98)",
     "1.820 (46.23)",
     "0.0900"
    ],
    [
     16,
     "2 1/2",
     "2.500 (63.50)",
     "0.245 (6.22)",
     "2.275 (57.78)",
     "0.1125"
    ],
    [
     16,
     "3",
     "3.000 (76.20)",
     "0.294 (7.47)",
     "2.730 (69.34)",
     "0.1350"
    ],
    [
     16,
     "3 1/2",
     "3.500 (88.90)",
     "0.343 (8.71)",
     "3.185 (80.90)",
     "0.1575"
    ],
    [
     16,
     "4",
     "4.000 (101.60)",
     "0.392 (9.96)",
     "3.640 (92.46)",
     "0.1800"
    ],
    [
     16,
     "4 1/2",
     "4.500 (114.30)",
     "0.441 (11.20)",
     "4.095 (104.01)",
     "0.2025"
    ],
    [
     16,
     "5",
     "5.000 (127.00)",
     "0.490 (12.45)",
     "4.550 (115.57)",
     "0.2250"
    ],
    [
     16,
     "5 1/2",
     "5.500 (139.70)",
     "0.539 (13.69)",
     "5.005 (127.13)",
     "0.2475"
    ],
    [
     16,
     "6",
     "6.000 (152.40)",
     "0.588 (14.94)",
     "5.460 (138.68)",
     "0.2700"
    ]
   ]
  }
 },
 "sheet_text": "SAE straight-side splines, 4, 6, 10 and 16 splines: major diameter D, spline width W and root diameter d (fit A) + example shaft STEP/STL — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/sae-straight-side-splines-4-6-10-16/  (sheet CC BY 4.0)\nBasis: Machinery's Handbook 31st ed. Tables 18 to 21 (SAE standard 4, 6, 10, 16 spline fittings, fit A, external member, maximum values), proportions of every row checked against its spline count; inch values with mm equivalents; shaft sections drawn from them\nCatalog version: 2026-10-20\n\nSizes: see table below\n- SAE straight-side (parallel-side) splines, the 4-, 6-, 10- and 16-spline series of SAE J499 / the older SAE spline fittings: parallel-sided splines of width W on a root cylinder d inside a major cylinder D. The numbers are Machinery's Handbook Tables 18 to 21 for fit A (permanent fit), external member, maximum values (D max, W max, d max); 4 splines 3/4 to 3 in, 6 splines 3/4 to 3 in, 10 splines 3/4 to 6 in, 16 splines 2 to 6 in. Each row follows its spline count's proportions to the printed rounding (checked on every row): 4 splines W = 0.241 D and d = 0.850 D; 6 splines W = 0.250 D, d = 0.900 D; 10 splines W = 0.156 D, d = 0.910 D; 16 splines W = 0.098 D, d = 0.910 D (the handbook's Table 22 gives these as formulas; its text could not be read in full, so the ratios here are read back from the table rows).\n- Fits: the standard also gives fit B (to slide, no load) and, for 6 to 16 splines, fit C (to slide under load), with smaller d and wider clearances; the extraction of those columns was ambiguous, so only fit A is tabulated. The internal member (hub) values are not tabulated either. Tolerance: shafts 3/4 to 1-3/4 in are −0.001 in and 2 to 3 in −0.002 in on the major diameter (Engineers Edge note on the SAE table); the table values here are the maxima.\n- Files: 14 example shaft sections, as one extruded solid: a root cylinder of Ø d with N parallel splines of width W out to Ø D, drawn from the maximum values; length equal to the major diameter (an example, not a standard length); no chamfers or corner radii. Radii at spline corners should not exceed 0.015 in and the spline should not be more than 0.006 in per foot out of parallel with the shaft axis (Machinery's Handbook text).\n- Not on this page: torque ratings (the handbook prints them: for example 10 splines, 1 in nominal, 215 in-lb at fit A), fits B and C, the internal member, 5/8 in and smaller sizes. SAE J499 is sold by SAE and is linked, not reproduced.\n\nsplines  nominal Ø, in  major Ø D (max), in (mm)  spline width W (max), in (mm)  root Ø d (max), in (mm)  spline depth (D − d) / 2, in (derived)\n4  3/4  0.750 (19.05)  0.181 (4.60)  0.637 (16.18)  0.0565\n4  7/8  0.875 (22.22)  0.211 (5.36)  0.744 (18.90)  0.0655\n4  1  1.000 (25.40)  0.241 (6.12)  0.850 (21.59)  0.0750\n4  1 1/8  1.125 (28.57)  0.271 (6.88)  0.956 (24.28)  0.0845\n4  1 1/4  1.250 (31.75)  0.301 (7.65)  1.062 (26.97)  0.0940\n4  1 3/8  1.375 (34.92)  0.331 (8.41)  1.169 (29.69)  0.1030\n4  1 1/2  1.500 (38.10)  0.361 (9.17)  1.275 (32.38)  0.1125\n4  1 5/8  1.625 (41.27)  0.391 (9.93)  1.381 (35.08)  0.1220\n4  1 3/4  1.750 (44.45)  0.422 (10.72)  1.487 (37.77)  0.1315\n4  2  2.000 (50.80)  0.482 (12.24)  1.700 (43.18)  0.1500\n4  2 1/4  2.250 (57.15)  0.542 (13.77)  1.912 (48.56)  0.1690\n4  2 1/2  2.500 (63.50)  0.602 (15.29)  2.125 (53.97)  0.1875\n4  3  3.000 (76.20)  0.723 (18.36)  2.550 (64.77)  0.2250\n6  3/4  0.750 (19.05)  0.188 (4.78)  0.675 (17.14)  0.0375\n6  7/8  0.875 (22.22)  0.219 (5.56)  0.788 (20.02)  0.0435\n6  1  1.000 (25.40)  0.250 (6.35)  0.900 (22.86)  0.0500\n6  1 1/8  1.125 (28.57)  0.281 (7.14)  1.013 (25.73)  0.0560\n6  1 1/4  1.250 (31.75)  0.313 (7.95)  1.125 (28.57)  0.0625\n6  1 3/8  1.375 (34.92)  0.344 (8.74)  1.238 (31.45)  0.0685\n6  1 1/2  1.500 (38.10)  0.375 (9.52)  1.350 (34.29)  0.0750\n6  1 5/8  1.625 (41.27)  0.406 (10.31)  1.463 (37.16)  0.0810\n6  1 3/4  1.750 (44.45)  0.438 (11.13)  1.575 (40.00)  0.0875\n6  2  2.000 (50.80)  0.500 (12.70)  1.800 (45.72)  0.1000\n6  2 1/4  2.250 (57.15)  0.563 (14.30)  2.025 (51.43)  0.1125\n6  2 1/2  2.500 (63.50)  0.625 (15.88)  2.250 (57.15)  0.1250\n6  3  3.000 (76.20)  0.750 (19.05)  2.700 (68.58)  0.1500\n10  3/4  0.750 (19.05)  0.117 (2.97)  0.683 (17.35)  0.0335\n10  7/8  0.875 (22.22)  0.137 (3.48)  0.796 (20.22)  0.0395\n10  1  1.000 (25.40)  0.156 (3.96)  0.910 (23.11)  0.0450\n10  1 1/8  1.125 (28.57)  0.176 (4.47)  1.024 (26.01)  0.0505\n10  1 1/4  1.250 (31.75)  0.195 (4.95)  1.138 (28.91)  0.0560\n10  1 3/8  1.375 (34.92)  0.215 (5.46)  1.251 (31.78)  0.0620\n10  1 1/2  1.500 (38.10)  0.234 (5.94)  1.365 (34.67)  0.0675\n10  1 5/8  1.625 (41.27)  0.254 (6.45)  1.479 (37.57)  0.0730\n10  1 3/4  1.750 (44.45)  0.273 (6.93)  1.593 (40.46)  0.0785\n10  2  2.000 (50.80)  0.312 (7.92)  1.820 (46.23)  0.0900\n10  2 1/4  2.250 (57.15)  0.351 (8.92)  2.048 (52.02)  0.1010\n10  2 1/2  2.500 (63.50)  0.390 (9.91)  2.275 (57.78)  0.1125\n10  3  3.000 (76.20)  0.468 (11.89)  2.730 (69.34)  0.1350\n10  3 1/2  3.500 (88.90)  0.546 (13.87)  3.185 (80.90)  0.1575\n10  4  4.000 (101.60)  0.624 (15.85)  3.640 (92.46)  0.1800\n10  4 1/2  4.500 (114.30)  0.702 (17.83)  4.095 (104.01)  0.2025\n10  5  5.000 (127.00)  0.780 (19.81)  4.550 (115.57)  0.2250\n10  5 1/2  5.500 (139.70)  0.858 (21.79)  5.005 (127.13)  0.2475\n10  6  6.000 (152.40)  0.936 (23.77)  5.460 (138.68)  0.2700\n16  2  2.000 (50.80)  0.196 (4.98)  1.820 (46.23)  0.0900\n16  2 1/2  2.500 (63.50)  0.245 (6.22)  2.275 (57.78)  0.1125\n16  3  3.000 (76.20)  0.294 (7.47)  2.730 (69.34)  0.1350\n16  3 1/2  3.500 (88.90)  0.343 (8.71)  3.185 (80.90)  0.1575\n16  4  4.000 (101.60)  0.392 (9.96)  3.640 (92.46)  0.1800\n16  4 1/2  4.500 (114.30)  0.441 (11.20)  4.095 (104.01)  0.2025\n16  5  5.000 (127.00)  0.490 (12.45)  4.550 (115.57)  0.2250\n16  5 1/2  5.500 (139.70)  0.539 (13.69)  5.005 (127.13)  0.2475\n16  6  6.000 (152.40)  0.588 (14.94)  5.460 (138.68)  0.2700\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Machinery's Handbook, 31st ed. (online edition): Tables 18 to 21: SAE standard 4, 6, 10 and 16 spline fittings (D, W, d, torque), Table 22 formulas — web — Publisher's page; dimensions are facts — https://online.flippingbook.com/view/954046886/1022/\n- Machinery's Handbook, 31st ed. (online edition): Tables 20 and 21: SAE standard 10 and 16 spline fittings — web — Publisher's page; dimensions are facts — https://online.flippingbook.com/view/954046886/1023/\n- SAE: SAE J499 Parallel side splines for soft broached holes in fittings (standard; sold, not reproduced) — standard — SAE; dimensions are facts [verify license at link] — https://saemobilus.sae.org/content/J499_201406\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 14 parts): https://xemstudio.com/files/hardware/sae-straight-side-splines-4-6-10-16/index.json\nAPI: https://xemstudio.com/api/geometry?object=sae-straight-side-splines-4-6-10-16\n",
 "sources": [
  {
   "publisher": "Machinery's Handbook, 31st ed. (online edition)",
   "title": "Tables 18 to 21: SAE standard 4, 6, 10 and 16 spline fittings (D, W, d, torque), Table 22 formulas",
   "url": "https://online.flippingbook.com/view/954046886/1022/",
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   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
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  },
  {
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   "title": "Tables 20 and 21: SAE standard 10 and 16 spline fittings",
   "url": "https://online.flippingbook.com/view/954046886/1023/",
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   "license_verified": true,
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  },
  {
   "publisher": "SAE",
   "title": "SAE J499 Parallel side splines for soft broached holes in fittings (standard; sold, not reproduced)",
   "url": "https://saemobilus.sae.org/content/J499_201406",
   "formats": [
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 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "involute-splines-ansi-b92-1-30deg-flat-root",
  "involute-splines-iso-4156-metric-module",
  "parallel-keys-din-6885",
  "square-keys-inch",
  "taper-lock-bushings-1008-to-5050",
  "qd-bushings-sh-sds-sd"
 ],
 "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": "spline shaft",
   "exact": "D (max), W (max), d (max) as in the table, fit A",
   "mates": "SAE straight-side hub of the same nominal size and spline count (hub values not tabulated here)",
   "fit": "designed",
   "files": "sae-"
  }
 ],
 "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": [
  {
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   "a": "Major Ø 1.000 in, spline width 0.156 in, root Ø 0.910 in (fit A, maximum values)."
  },
  {
   "q": "What are the dimensions of a 1 in SAE 6-spline shaft?",
   "a": "Major Ø 1.000 in, spline width 0.250 in, root Ø 0.900 in (fit A)."
  },
  {
   "q": "How many splines does an SAE spline have?",
   "a": "The SAE straight-side series has 4, 6, 10 and 16 splines; 16-spline shafts start at 2 in."
  }
 ],
 "files_license": null,
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   "note": "SAE 4-spline shaft section, nominal 3/4 in, fit A (permanent): major Ø19.050 mm (0.750 in), spline width W4.597 mm (0.181 in), root Ø16.180 mm (0.637 in), 4 parallel-sided splines; maximum values of the tables; the 19.0 mm length (equal to the major diameter) is an example, no chamfer, no bore"
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   "note": "SAE 6-spline shaft section, nominal 2 in, fit A (permanent): major Ø50.800 mm (2.000 in), spline width W12.700 mm (0.500 in), root Ø45.720 mm (1.800 in), 6 parallel-sided splines; maximum values of the tables; the 50.8 mm length (equal to the major diameter) is an example, no chamfer, no bore"
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   "note": "SAE 10-spline shaft section, nominal 1 in, fit A (permanent): major Ø25.400 mm (1.000 in), spline width W3.962 mm (0.156 in), root Ø23.114 mm (0.910 in), 10 parallel-sided splines; maximum values of the tables; the 25.4 mm length (equal to the major diameter) is an example, no chamfer, no bore"
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   "note": "SAE 10-spline shaft section, nominal 1-1/2 in, fit A (permanent): major Ø38.100 mm (1.500 in), spline width W5.944 mm (0.234 in), root Ø34.671 mm (1.365 in), 10 parallel-sided splines; maximum values of the tables; the 38.1 mm length (equal to the major diameter) is an example, no chamfer, no bore"
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   "note": "SAE 16-spline shaft section, nominal 3 in, fit A (permanent): major Ø76.200 mm (3.000 in), spline width W7.468 mm (0.294 in), root Ø69.342 mm (2.730 in), 16 parallel-sided splines; maximum values of the tables; the 76.2 mm length (equal to the major diameter) is an example, no chamfer, no bore"
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   "step": "https://xemstudio.com/files/hardware/sae-straight-side-splines-4-6-10-16/sae-16-spline-shaft-4in.step",
   "stl": "https://xemstudio.com/files/hardware/sae-straight-side-splines-4-6-10-16/sae-16-spline-shaft-4in.stl",
   "note": "SAE 16-spline shaft section, nominal 4 in, fit A (permanent): major Ø101.600 mm (4.000 in), spline width W9.957 mm (0.392 in), root Ø92.456 mm (3.640 in), 16 parallel-sided splines; maximum values of the tables; the 101.6 mm length (equal to the major diameter) is an example, no chamfer, no bore"
  }
 ],
 "markdown": "https://xemstudio.com/objects/sae-straight-side-splines-4-6-10-16/index.md"
}