Bearing dimensions finder

1. Measure the three boundary dimensions with a caliper: bore (the shaft seat), outside diameter and width, in millimetres. The designation already encodes them — a 6307 is always 35×80×21 mm, a 6205 always 25×52×15 mm.
2. Match the exact envelope if you have all three numbers: every bearing in the database with that d×D×B is listed, across series and brands, with load ratings next to each other.
3. Start from the bore alone if the old bearing is unreadable: every model on that shaft diameter is grouped by type, and the envelope tables show which sizes the housing can accept.
4. Verify before substituting: same dimensions do not mean same capacity — compare dynamic load, static load, limiting speed, seals and clearance on the model pages before you order.

Each bore page lists every model in the database with that shaft diameter, grouped by bearing type, with outside diameter, width, seal, clearance and load rating.

• 3 mm bore →

  12 models · OD 5–10 mm · 3 types

• 4 mm bore →

  17 models · OD 7–16 mm · 4 types

• 5 mm bore →

  36 models · OD 8–19 mm · 6 types

• 6 mm bore →

  50 models · OD 9–19 mm · 7 types

• 7 mm bore →

  40 models · OD 10–22 mm · 5 types

• 8 mm bore →

  65 models · OD 11–28 mm · 7 types

• 9 mm bore →

  41 models · OD 12–26 mm · 5 types

• 10 mm bore →

  183 models · OD 13–40 mm · 9 types

• 12 mm bore →

  200 models · OD 15–48 mm · 11 types

• 14 mm bore →

  17 models · OD 18–30 mm · 2 types

• 15 mm bore →

  221 models · OD 19–52 mm · 15 types

• 15.875 mm bore →

  8 models · OD 40–49.225 mm · 2 types

• 16 mm bore →

  33 models · OD 22–35 mm · 3 types

• 17 mm bore →

  220 models · OD 23–62 mm · 13 types

• 18 mm bore →

  24 models · OD 24–40 mm · 3 types

• 19.049999999999997 mm bore →

  8 models · OD 47–47 mm · 1 type

• 19.05 mm bore →

  10 models · OD 39.992–56.896 mm · 2 types

• 20 mm bore →

  337 models · OD 26–72 mm · 16 types

• 22 mm bore →

  43 models · OD 28–56 mm · 5 types

• 24 mm bore →

  32 models · OD 32–72 mm · 3 types

• 25 mm bore →

  364 models · OD 32–80 mm · 17 types

• 25.4 mm bore →

  30 models · OD 50.005–66.421 mm · 2 types

• 28 mm bore →

  34 models · OD 35–72 mm · 4 types

• 28.575 mm bore →

  21 models · OD 56.896–73.025 mm · 2 types

• 30 mm bore →

  407 models · OD 37–90 mm · 18 types

• 30.162499999999998 mm bore →

  11 models · OD 62–62 mm · 1 type

• 31.75 mm bore →

  42 models · OD 59.131–80 mm · 2 types

• 32 mm bore →

  26 models · OD 37–75 mm · 2 types

• 33.338 mm bore →

  11 models · OD 68.262–79.375 mm · 1 type

• 34.925 mm bore →

  37 models · OD 65.088–85.725 mm · 2 types

• 35 mm bore →

  385 models · OD 40–100 mm · 17 types

• 36.512 mm bore →

  8 models · OD 76.2–88.5 mm · 2 types

• 36.512499999999996 mm bore →

  12 models · OD 72–80 mm · 1 type

• 37 mm bore →

  8 models · OD 42–52 mm · 1 type

• 38 mm bore →

  12 models · OD 43–63 mm · 3 types

• 38.099999999999994 mm bore →

  13 models · OD 80–85 mm · 1 type

• 38.1 mm bore →

  31 models · OD 63.5–88.5 mm · 2 types

• 40 mm bore →

  413 models · OD 45–110 mm · 16 types

• 41.275 mm bore →

  32 models · OD 73.025–101.6 mm · 2 types

• 42 mm bore →

  17 models · OD 47–72 mm · 2 types

• 42.8625 mm bore →

  8 models · OD 85–85 mm · 1 type

• 44.45 mm bore →

  32 models · OD 76.992–111.125 mm · 2 types

• 45 mm bore →

  355 models · OD 50–120 mm · 16 types

• 46.038 mm bore →

  11 models · OD 79.375–101.6 mm · 1 type

• 47.625 mm bore →

  10 models · OD 88.9–123.825 mm · 1 type

• 49.2125 mm bore →

  11 models · OD 90–90 mm · 1 type

• 50 mm bore →

  377 models · OD 55–130 mm · 15 types

• 50.8 mm bore →

  43 models · OD 82.55–123.825 mm · 2 types

• 53.975 mm bore →

  27 models · OD 88.9–140.03 mm · 1 type

• 55 mm bore →

  348 models · OD 60–250 mm · 15 types

• 57.15 mm bore →

  24 models · OD 96.838–140.03 mm · 2 types

• 60 mm bore →

  335 models · OD 68–150 mm · 16 types

• 60.325 mm bore →

  9 models · OD 100–130.175 mm · 1 type

• 63.5 mm bore →

  22 models · OD 94.458–140.03 mm · 2 types

• 65 mm bore →

  317 models · OD 78–170 mm · 15 types

• 65.088 mm bore →

  8 models · OD 110–135.755 mm · 1 type

• 66.675 mm bore →

  13 models · OD 103.213–136.525 mm · 1 type

• 68 mm bore →

  8 models · OD 82–85 mm · 1 type

• 69.85 mm bore →

  16 models · OD 112.712–168.275 mm · 1 type

• 70 mm bore →

  309 models · OD 85–180 mm · 15 types

• 71.438 mm bore →

  8 models · OD 117.475–136.525 mm · 1 type

• 73.025 mm bore →

  9 models · OD 112.712–150.089 mm · 1 type

• 75 mm bore →

  302 models · OD 92–190 mm · 15 types

• 76.2 mm bore →

  22 models · OD 109.538–190.5 mm · 1 type

• 80 mm bore →

  300 models · OD 95–210 mm · 15 types

• 82.55 mm bore →

  16 models · OD 125.412–168.275 mm · 1 type

• 85 mm bore →

  275 models · OD 105–210 mm · 14 types

• 88.9 mm bore →

  10 models · OD 121.442–168.275 mm · 1 type

• 90 mm bore →

  287 models · OD 105–225 mm · 15 types

• 95 mm bore →

  224 models · OD 115–240 mm · 11 types

• 95.25 mm bore →

  11 models · OD 130.175–168.275 mm · 1 type

• 100 mm bore →

  290 models · OD 120–250 mm · 15 types

• 101.6 mm bore →

  12 models · OD 146.05–212.725 mm · 1 type

• 105 mm bore →

  125 models · OD 125–260 mm · 8 types

• 110 mm bore →

  275 models · OD 130–280 mm · 14 types

• 114.3 mm bore →

  9 models · OD 177.8–228.6 mm · 1 type

• 120 mm bore →

  251 models · OD 140–310 mm · 14 types

• 127 mm bore →

  10 models · OD 182.562–254 mm · 1 type

• 130 mm bore →

  243 models · OD 150–280 mm · 14 types

• 133.35 mm bore →

  8 models · OD 177.008–234.95 mm · 1 type

• 140 mm bore →

  234 models · OD 175–300 mm · 13 types

• 150 mm bore →

  234 models · OD 180–320 mm · 13 types

• 160 mm bore →

  215 models · OD 190–340 mm · 12 types

• 170 mm bore →

  192 models · OD 215–360 mm · 11 types

• 180 mm bore →

  194 models · OD 225–380 mm · 12 types

• 190 mm bore →

  185 models · OD 240–400 mm · 11 types

• 200 mm bore →

  176 models · OD 250–420 mm · 12 types

• 220 mm bore →

  172 models · OD 250–460 mm · 12 types

• 240 mm bore →

  157 models · OD 50–500 mm · 12 types

• 260 mm bore →

  136 models · OD 310–540 mm · 11 types

• 280 mm bore →

  127 models · OD 330–580 mm · 11 types

• 300 mm bore →

  121 models · OD 360–620 mm · 11 types

• 320 mm bore →

  110 models · OD 380–670 mm · 10 types

• 340 mm bore →

  88 models · OD 400–710 mm · 9 types

• 360 mm bore →

  87 models · OD 420–750 mm · 9 types

• 380 mm bore →

  84 models · OD 450–680 mm · 9 types

• 400 mm bore →

  79 models · OD 470–720 mm · 8 types

• 420 mm bore →

  67 models · OD 490–760 mm · 8 types

• 440 mm bore →

  66 models · OD 520–790 mm · 8 types

• 460 mm bore →

  66 models · OD 540–830 mm · 8 types

• 480 mm bore →

  58 models · OD 560–870 mm · 8 types

• 500 mm bore →

  48 models · OD 600–920 mm · 7 types

• 530 mm bore →

  35 models · OD 630–980 mm · 8 types

• 560 mm bore →

  32 models · OD 680–1030 mm · 5 types

• 600 mm bore →

  32 models · OD 730–1090 mm · 6 types

• 630 mm bore →

  34 models · OD 780–1150 mm · 5 types

• 670 mm bore →

  27 models · OD 820–1220 mm · 5 types

• 710 mm bore →

  34 models · OD 870–1280 mm · 5 types

• 750 mm bore →

  27 models · OD 920–1360 mm · 5 types

• 800 mm bore →

  24 models · OD 980–1360 mm · 5 types

• 850 mm bore →

  22 models · OD 1030–1440 mm · 5 types

• 900 mm bore →

  17 models · OD 1090–1520 mm · 5 types

• 950 mm bore →

  14 models · OD 1150–1600 mm · 5 types

• 1000 mm bore →

  12 models · OD 1220–1670 mm · 4 types

• 1060 mm bore →

  10 models · OD 1280–1770 mm · 4 types

• 1120 mm bore →

  8 models · OD 1360–1580 mm · 3 types

Bearings sharing one ISO 15 boundary envelope are dimensionally interchangeable across series and brands — but load rating, seals and clearance must still be verified before substitution. The most common envelopes:

• 40×80×18 mm →

  54 models · 4 brands · 6 types

• 40×90×23 mm →

  52 models · 4 brands · 6 types

• 45×100×25 mm →

  52 models · 3 brands · 6 types

• 55×120×29 mm →

  51 models · 4 brands · 5 types

• 50×110×27 mm →

  50 models · 3 brands · 6 types

• 30×62×16 mm →

  49 models · 4 brands · 6 types

• 45×85×19 mm →

  49 models · 3 brands · 6 types

• 55×100×21 mm →

  49 models · 4 brands · 5 types

• 60×130×31 mm →

  49 models · 3 brands · 5 types

• 30×72×19 mm →

  48 models · 4 brands · 5 types

• 50×90×20 mm →

  48 models · 3 brands · 5 types

• 60×110×22 mm →

  48 models · 3 brands · 6 types

Browse the full type catalog →