Single-row self-aligning roller bearings consist of an outer ring, an inner ring, a single row of barrel-shaped rollers and a cage. The outer ring raceway is spherical, whilst the inner ring features a single matching raceway. Rolling support is achieved by the single row of barrel-shaped rollers, providing self-aligning capability. These bearings are primarily designed to withstand substantial radial loads and can accommodate moderate axial loads in both directions, whilst offering good resistance to shock and vibration; Compared with double-row self-aligning roller bearings, they feature a more compact structure, a narrower width, lower frictional resistance and a higher limiting speed. They are widely used in industries such as fans and blowers, conveying equipment, paper-making machinery, small and medium-sized mining equipment, long drive shafts, and light and heavy-duty transmissions.
| Bearing model number | Basic Dimensions（mm） | Basic load （KN） |
Rated speed(rpm) | Bearing weight | ||||
|---|---|---|---|---|---|---|---|---|
| Cylindrical hole | Conical hole | d inner diameter |
D outer diameter |
B thickness |
Dynamic load Cr |
Static load Cor |
Limiting Speed | |
| 20240-MBMN | — | 200 | 360 | 58 | 730 | 1080 | 2180 | 26.7 |
| 20238-MBMN | — | 190 | 340 | 55 | 650 | 950 | 2290 | 22.5 |
| 20236-MBMN | — | 180 | 320 | 52 | 590 | 850 | 2420 | 18.4 |
| 20234-MBMN | — | 170 | 310 | 52 | 570 | 830 | 2460 | 17.9 |
| 20232-MBMN | 20232-K-MB-C3MN | 160 | 290 | 48 | 500 | 720 | 2650 | 14.5 |
| 20330-MBMN | — | 150 | 320 | 65 | 720 | 950 | 2250 | 26.9 |
| 20230-MBMN | 20230-K-MB-C3MN | 150 | 270 | 45 | 430 | 610 | 2850 | 11.7 |
| 20328-MBMN | — | 140 | 300 | 62 | 650 | 840 | 2370 | 22.5 |
| 20228-MBMN | 20228-K-MB-C3MN | 140 | 250 | 42 | 395 | 540 | 3050 | 9.09 |
| 20326-MBMN | — | 130 | 280 | 58 | 560 | 720 | 2600 | 18.4 |
| 20226-MBMN | 20226-K-MB-C3MN | 130 | 230 | 40 | 330 | 450 | 3300 | 7.31 |
| 20324-MBMN | — | 120 | 260 | 55 | 490 | 630 | 2750 | 15.2 |
| 20224-MBMN | 20224-K-MB-C3MN | 120 | 215 | 40 | 305 | 415 | 3350 | 6.6 |
| 20322-MBMN | — | 110 | 240 | 50 | 405 | 480 | 3000 | 11.6 |
| 20222-MBMN | 20222-K-MB-C3MN | 110 | 200 | 38 | 285 | 370 | 3600 | 5.53 |
| 20221-MBMN | — | 105 | 190 | 36 | 244 | 315 | 3850 | 4.74 |
| 20320-MBMN | 20320-K-MB-C3MN | 100 | 215 | 47 | 365 | 440 | 3250 | 8.69 |
| 20220-MBMN | 20220-K-MB-C3MN | 100 | 180 | 34 | 225 | 290 | 4000 | 3.96 |
| 20319-MBMN | — | 95 | 200 | 45 | 330 | 400 | 3400 | 7.29 |
| 20219-MBMN | — | 95 | 170 | 32 | 206 | 265 | 4200 | 3.19 |
