Bearing size reference
Angular contact ball bearings: size tables
Single-row angular contact ball bearings carry combined loads, with the axial load acting in one direction. They are usually mounted in pairs — back-to-back, face-to-face or tandem — to take axial loads in both directions or to increase stiffness.
In the 72 and 73 series the contact angle is part of the suffix: B is commonly 40°, AC 25° and C 15°. Pairing arrangements and preload are also given by suffixes, which vary by manufacturer.
| Property | |
|---|---|
| Loads | Combined radial and axial (one direction per bearing) |
| Typical uses | Pumps and compressors, Machine-tool spindles, Gearboxes, Worm drives |
| Standard sizes listed | 64 |
| Dimension standard | ISO 15 |
Dimension series 02
72 series
Light series, same envelope as 62xx.
| Designation | d (mm) | D (mm) | B (mm) | d × D × B (in) |
|---|---|---|---|---|
| 7200 | 10 | 30 | 9 | 0.3937 × 1.1811 × 0.3543 |
| 7201 | 12 | 32 | 10 | 0.4724 × 1.2598 × 0.3937 |
| 7202 | 15 | 35 | 11 | 0.5906 × 1.378 × 0.4331 |
| 7203 | 17 | 40 | 12 | 0.6693 × 1.5748 × 0.4724 |
| 7204 | 20 | 47 | 14 | 0.7874 × 1.8504 × 0.5512 |
| 7205 | 25 | 52 | 15 | 0.9843 × 2.0472 × 0.5906 |
| 7206 | 30 | 62 | 16 | 1.1811 × 2.4409 × 0.6299 |
| 7207 | 35 | 72 | 17 | 1.378 × 2.8346 × 0.6693 |
| 7208 | 40 | 80 | 18 | 1.5748 × 3.1496 × 0.7087 |
| 7209 | 45 | 85 | 19 | 1.7717 × 3.3465 × 0.748 |
| 7210 | 50 | 90 | 20 | 1.9685 × 3.5433 × 0.7874 |
| 7211 | 55 | 100 | 21 | 2.1654 × 3.937 × 0.8268 |
| 7212 | 60 | 110 | 22 | 2.3622 × 4.3307 × 0.8661 |
| 7213 | 65 | 120 | 23 | 2.5591 × 4.7244 × 0.9055 |
| 7214 | 70 | 125 | 24 | 2.7559 × 4.9213 × 0.9449 |
| 7215 | 75 | 130 | 25 | 2.9528 × 5.1181 × 0.9843 |
| 7216 | 80 | 140 | 26 | 3.1496 × 5.5118 × 1.0236 |
| 7217 | 85 | 150 | 28 | 3.3465 × 5.9055 × 1.1024 |
| 7218 | 90 | 160 | 30 | 3.5433 × 6.2992 × 1.1811 |
| 7219 | 95 | 170 | 32 | 3.7402 × 6.6929 × 1.2598 |
| 7220 | 100 | 180 | 34 | 3.937 × 7.0866 × 1.3386 |
| 7221 | 105 | 190 | 36 | 4.1339 × 7.4803 × 1.4173 |
| 7222 | 110 | 200 | 38 | 4.3307 × 7.874 × 1.4961 |
| 7224 | 120 | 215 | 40 | 4.7244 × 8.4646 × 1.5748 |
| 7226 | 130 | 230 | 40 | 5.1181 × 9.0551 × 1.5748 |
| 7228 | 140 | 250 | 42 | 5.5118 × 9.8425 × 1.6535 |
| 7230 | 150 | 270 | 45 | 5.9055 × 10.6299 × 1.7717 |
| 7232 | 160 | 290 | 48 | 6.2992 × 11.4173 × 1.8898 |
| 7234 | 170 | 310 | 52 | 6.6929 × 12.2047 × 2.0472 |
| 7236 | 180 | 320 | 52 | 7.0866 × 12.5984 × 2.0472 |
| 7238 | 190 | 340 | 55 | 7.4803 × 13.3858 × 2.1654 |
| 7240 | 200 | 360 | 58 | 7.874 × 14.1732 × 2.2835 |
Dimension series 03
73 series
Medium series, same envelope as 63xx.
| Designation | d (mm) | D (mm) | B (mm) | d × D × B (in) |
|---|---|---|---|---|
| 7300 | 10 | 35 | 11 | 0.3937 × 1.378 × 0.4331 |
| 7301 | 12 | 37 | 12 | 0.4724 × 1.4567 × 0.4724 |
| 7302 | 15 | 42 | 13 | 0.5906 × 1.6535 × 0.5118 |
| 7303 | 17 | 47 | 14 | 0.6693 × 1.8504 × 0.5512 |
| 7304 | 20 | 52 | 15 | 0.7874 × 2.0472 × 0.5906 |
| 7305 | 25 | 62 | 17 | 0.9843 × 2.4409 × 0.6693 |
| 7306 | 30 | 72 | 19 | 1.1811 × 2.8346 × 0.748 |
| 7307 | 35 | 80 | 21 | 1.378 × 3.1496 × 0.8268 |
| 7308 | 40 | 90 | 23 | 1.5748 × 3.5433 × 0.9055 |
| 7309 | 45 | 100 | 25 | 1.7717 × 3.937 × 0.9843 |
| 7310 | 50 | 110 | 27 | 1.9685 × 4.3307 × 1.063 |
| 7311 | 55 | 120 | 29 | 2.1654 × 4.7244 × 1.1417 |
| 7312 | 60 | 130 | 31 | 2.3622 × 5.1181 × 1.2205 |
| 7313 | 65 | 140 | 33 | 2.5591 × 5.5118 × 1.2992 |
| 7314 | 70 | 150 | 35 | 2.7559 × 5.9055 × 1.378 |
| 7315 | 75 | 160 | 37 | 2.9528 × 6.2992 × 1.4567 |
| 7316 | 80 | 170 | 39 | 3.1496 × 6.6929 × 1.5354 |
| 7317 | 85 | 180 | 41 | 3.3465 × 7.0866 × 1.6142 |
| 7318 | 90 | 190 | 43 | 3.5433 × 7.4803 × 1.6929 |
| 7319 | 95 | 200 | 45 | 3.7402 × 7.874 × 1.7717 |
| 7320 | 100 | 215 | 47 | 3.937 × 8.4646 × 1.8504 |
| 7321 | 105 | 225 | 49 | 4.1339 × 8.8583 × 1.9291 |
| 7322 | 110 | 240 | 50 | 4.3307 × 9.4488 × 1.9685 |
| 7324 | 120 | 260 | 55 | 4.7244 × 10.2362 × 2.1654 |
| 7326 | 130 | 280 | 58 | 5.1181 × 11.0236 × 2.2835 |
| 7328 | 140 | 300 | 62 | 5.5118 × 11.811 × 2.4409 |
| 7330 | 150 | 320 | 65 | 5.9055 × 12.5984 × 2.5591 |
| 7332 | 160 | 340 | 68 | 6.2992 × 13.3858 × 2.6772 |
| 7334 | 170 | 360 | 72 | 6.6929 × 14.1732 × 2.8346 |
| 7336 | 180 | 380 | 75 | 7.0866 × 14.9606 × 2.9528 |
| 7338 | 190 | 400 | 78 | 7.4803 × 15.748 × 3.0709 |
| 7340 | 200 | 420 | 80 | 7.874 × 16.5354 × 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 tablesSelf-aligning ball bearings
Two rows of balls with a common spherical outer raceway, tolerating shaft misalignment and deflection.
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
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