Bearing size reference
Self-aligning ball bearings: size tables
Self-aligning ball bearings have two rows of balls and a spherical raceway in the outer ring, so the inner ring, balls and cage can swivel relative to the outer ring. They tolerate angular misalignment from shaft deflection or mounting errors.
Series 12 and 13 are the normal widths; series 22 and 23 are wider versions with the same bore and outside diameter. A K suffix indicates a tapered bore for adapter-sleeve mounting.
| Property | |
|---|---|
| Loads | Mainly radial; light axial |
| Typical uses | Agricultural machinery, Textile machinery, Fans and conveyors, Long shafts with deflection |
| Standard sizes listed | 90 |
| Dimension standard | ISO 15 |
Dimension series 02
12 series
Light series, same envelope as 62xx.
| Designation | d (mm) | D (mm) | B (mm) | d × D × B (in) |
|---|---|---|---|---|
| 1200 | 10 | 30 | 9 | 0.3937 × 1.1811 × 0.3543 |
| 1201 | 12 | 32 | 10 | 0.4724 × 1.2598 × 0.3937 |
| 1202 | 15 | 35 | 11 | 0.5906 × 1.378 × 0.4331 |
| 1203 | 17 | 40 | 12 | 0.6693 × 1.5748 × 0.4724 |
| 1204 | 20 | 47 | 14 | 0.7874 × 1.8504 × 0.5512 |
| 1205 | 25 | 52 | 15 | 0.9843 × 2.0472 × 0.5906 |
| 1206 | 30 | 62 | 16 | 1.1811 × 2.4409 × 0.6299 |
| 1207 | 35 | 72 | 17 | 1.378 × 2.8346 × 0.6693 |
| 1208 | 40 | 80 | 18 | 1.5748 × 3.1496 × 0.7087 |
| 1209 | 45 | 85 | 19 | 1.7717 × 3.3465 × 0.748 |
| 1210 | 50 | 90 | 20 | 1.9685 × 3.5433 × 0.7874 |
| 1211 | 55 | 100 | 21 | 2.1654 × 3.937 × 0.8268 |
| 1212 | 60 | 110 | 22 | 2.3622 × 4.3307 × 0.8661 |
| 1213 | 65 | 120 | 23 | 2.5591 × 4.7244 × 0.9055 |
| 1214 | 70 | 125 | 24 | 2.7559 × 4.9213 × 0.9449 |
| 1215 | 75 | 130 | 25 | 2.9528 × 5.1181 × 0.9843 |
| 1216 | 80 | 140 | 26 | 3.1496 × 5.5118 × 1.0236 |
| 1217 | 85 | 150 | 28 | 3.3465 × 5.9055 × 1.1024 |
| 1218 | 90 | 160 | 30 | 3.5433 × 6.2992 × 1.1811 |
| 1219 | 95 | 170 | 32 | 3.7402 × 6.6929 × 1.2598 |
| 1220 | 100 | 180 | 34 | 3.937 × 7.0866 × 1.3386 |
| 1221 | 105 | 190 | 36 | 4.1339 × 7.4803 × 1.4173 |
| 1222 | 110 | 200 | 38 | 4.3307 × 7.874 × 1.4961 |
Dimension series 03
13 series
Medium series, same envelope as 63xx.
| Designation | d (mm) | D (mm) | B (mm) | d × D × B (in) |
|---|---|---|---|---|
| 1300 | 10 | 35 | 11 | 0.3937 × 1.378 × 0.4331 |
| 1301 | 12 | 37 | 12 | 0.4724 × 1.4567 × 0.4724 |
| 1302 | 15 | 42 | 13 | 0.5906 × 1.6535 × 0.5118 |
| 1303 | 17 | 47 | 14 | 0.6693 × 1.8504 × 0.5512 |
| 1304 | 20 | 52 | 15 | 0.7874 × 2.0472 × 0.5906 |
| 1305 | 25 | 62 | 17 | 0.9843 × 2.4409 × 0.6693 |
| 1306 | 30 | 72 | 19 | 1.1811 × 2.8346 × 0.748 |
| 1307 | 35 | 80 | 21 | 1.378 × 3.1496 × 0.8268 |
| 1308 | 40 | 90 | 23 | 1.5748 × 3.5433 × 0.9055 |
| 1309 | 45 | 100 | 25 | 1.7717 × 3.937 × 0.9843 |
| 1310 | 50 | 110 | 27 | 1.9685 × 4.3307 × 1.063 |
| 1311 | 55 | 120 | 29 | 2.1654 × 4.7244 × 1.1417 |
| 1312 | 60 | 130 | 31 | 2.3622 × 5.1181 × 1.2205 |
| 1313 | 65 | 140 | 33 | 2.5591 × 5.5118 × 1.2992 |
| 1314 | 70 | 150 | 35 | 2.7559 × 5.9055 × 1.378 |
| 1315 | 75 | 160 | 37 | 2.9528 × 6.2992 × 1.4567 |
| 1316 | 80 | 170 | 39 | 3.1496 × 6.6929 × 1.5354 |
| 1317 | 85 | 180 | 41 | 3.3465 × 7.0866 × 1.6142 |
| 1318 | 90 | 190 | 43 | 3.5433 × 7.4803 × 1.6929 |
| 1319 | 95 | 200 | 45 | 3.7402 × 7.874 × 1.7717 |
| 1320 | 100 | 215 | 47 | 3.937 × 8.4646 × 1.8504 |
| 1321 | 105 | 225 | 49 | 4.1339 × 8.8583 × 1.9291 |
| 1322 | 110 | 240 | 50 | 4.3307 × 9.4488 × 1.9685 |
Dimension series 22
22 series (wide)
Wider version of the 12 series.
| Designation | d (mm) | D (mm) | B (mm) | d × D × B (in) |
|---|---|---|---|---|
| 2200 | 10 | 30 | 14 | 0.3937 × 1.1811 × 0.5512 |
| 2201 | 12 | 32 | 14 | 0.4724 × 1.2598 × 0.5512 |
| 2202 | 15 | 35 | 14 | 0.5906 × 1.378 × 0.5512 |
| 2203 | 17 | 40 | 16 | 0.6693 × 1.5748 × 0.6299 |
| 2204 | 20 | 47 | 18 | 0.7874 × 1.8504 × 0.7087 |
| 2205 | 25 | 52 | 18 | 0.9843 × 2.0472 × 0.7087 |
| 2206 | 30 | 62 | 20 | 1.1811 × 2.4409 × 0.7874 |
| 2207 | 35 | 72 | 23 | 1.378 × 2.8346 × 0.9055 |
| 2208 | 40 | 80 | 23 | 1.5748 × 3.1496 × 0.9055 |
| 2209 | 45 | 85 | 23 | 1.7717 × 3.3465 × 0.9055 |
| 2210 | 50 | 90 | 23 | 1.9685 × 3.5433 × 0.9055 |
| 2211 | 55 | 100 | 25 | 2.1654 × 3.937 × 0.9843 |
| 2212 | 60 | 110 | 28 | 2.3622 × 4.3307 × 1.1024 |
| 2213 | 65 | 120 | 31 | 2.5591 × 4.7244 × 1.2205 |
| 2214 | 70 | 125 | 31 | 2.7559 × 4.9213 × 1.2205 |
| 2215 | 75 | 130 | 31 | 2.9528 × 5.1181 × 1.2205 |
| 2216 | 80 | 140 | 33 | 3.1496 × 5.5118 × 1.2992 |
| 2217 | 85 | 150 | 36 | 3.3465 × 5.9055 × 1.4173 |
| 2218 | 90 | 160 | 40 | 3.5433 × 6.2992 × 1.5748 |
| 2219 | 95 | 170 | 43 | 3.7402 × 6.6929 × 1.6929 |
| 2220 | 100 | 180 | 46 | 3.937 × 7.0866 × 1.811 |
| 2222 | 110 | 200 | 53 | 4.3307 × 7.874 × 2.0866 |
Dimension series 23
23 series (wide)
Wider version of the 13 series.
| Designation | d (mm) | D (mm) | B (mm) | d × D × B (in) |
|---|---|---|---|---|
| 2300 | 10 | 35 | 17 | 0.3937 × 1.378 × 0.6693 |
| 2301 | 12 | 37 | 17 | 0.4724 × 1.4567 × 0.6693 |
| 2302 | 15 | 42 | 17 | 0.5906 × 1.6535 × 0.6693 |
| 2303 | 17 | 47 | 19 | 0.6693 × 1.8504 × 0.748 |
| 2304 | 20 | 52 | 21 | 0.7874 × 2.0472 × 0.8268 |
| 2305 | 25 | 62 | 24 | 0.9843 × 2.4409 × 0.9449 |
| 2306 | 30 | 72 | 27 | 1.1811 × 2.8346 × 1.063 |
| 2307 | 35 | 80 | 31 | 1.378 × 3.1496 × 1.2205 |
| 2308 | 40 | 90 | 33 | 1.5748 × 3.5433 × 1.2992 |
| 2309 | 45 | 100 | 36 | 1.7717 × 3.937 × 1.4173 |
| 2310 | 50 | 110 | 40 | 1.9685 × 4.3307 × 1.5748 |
| 2311 | 55 | 120 | 43 | 2.1654 × 4.7244 × 1.6929 |
| 2312 | 60 | 130 | 46 | 2.3622 × 5.1181 × 1.811 |
| 2313 | 65 | 140 | 48 | 2.5591 × 5.5118 × 1.8898 |
| 2314 | 70 | 150 | 51 | 2.7559 × 5.9055 × 2.0079 |
| 2315 | 75 | 160 | 55 | 2.9528 × 6.2992 × 2.1654 |
| 2316 | 80 | 170 | 58 | 3.1496 × 6.6929 × 2.2835 |
| 2317 | 85 | 180 | 60 | 3.3465 × 7.0866 × 2.3622 |
| 2318 | 90 | 190 | 64 | 3.5433 × 7.4803 × 2.5197 |
| 2319 | 95 | 200 | 67 | 3.7402 × 7.874 × 2.6378 |
| 2320 | 100 | 215 | 73 | 3.937 × 8.4646 × 2.874 |
| 2322 | 110 | 240 | 80 | 4.3307 × 9.4488 × 3.1496 |
Other types
Browse other bearing types
Deep groove ball bearings
The most common rolling bearing: one row of balls running in deep raceway grooves, available open, shielded or sealed.
Size tablesMiniature ball bearings
Small deep groove ball bearings with 3–9 mm bores — 608, 625, 688 and friends — used in skateboards, 3D printers, fans and small motors.
Size tablesAngular contact ball bearings
Raceways offset so that loads are carried at a contact angle, supporting combined radial and axial loads in one direction.
Size tablesCylindrical roller bearings
Cylindrical rollers with line contact for high radial load capacity; ring flanges determine axial guidance.
Size tablesSpherical roller bearings
Two rows of barrel-shaped rollers with a spherical outer raceway: heavy loads plus misalignment tolerance.
Size tablesTapered roller bearings
Tapered rollers between a cone and a cup carry heavy combined radial and axial loads — the wheel-hub and gearbox workhorse.
Size tablesThrust ball bearings
Shaft washer, housing washer and a ball-and-cage assembly for purely axial loads in one direction.
Size tablesPillow block bearing units
UCP two-bolt pillow block units: a set-screw insert bearing (UC2xx) in a cast-iron P2xx housing, ready to bolt to a frame.
Size tables
Bring one messy category.
Leave with a clear next step.
Share what your catalog looks like today. We will tell you what a scoped assessment would cover, what it would not, and what we would need from you.