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 | |
| 20318-MBMN | 20318-K-MB-C3MN | 90 | 190 | 43 | 300 | 360 | 3500 | 6.25 |
| 20218-MBMN | 20218-K-MB-C3MN | 90 | 160 | 30 | 174 | 220 | 4550 | 2.72 |
| 20317-MBMN | — | 85 | 180 | 41 | 270 | 320 | 3750 | 5.25 |
| 20217-MBMN | 20217-K-MB-C3MN | 85 | 150 | 28 | 155 | 201 | 4750 | 2.22 |
| 20316-MBMN | — | 80 | 170 | 39 | 243 | 285 | 3950 | 4.58 |
| 20216-TVPMN | 20216-K-TVP-C3MN | 80 | 140 | 26 | 126 | 163 | 5200 | 1.58 |
| 20315-MBMN | — | 75 | 160 | 37 | 216 | 255 | 4100 | 3.76 |
| 20215-TVPMN | 20215-K-TVP-C3MN | 75 | 130 | 25 | 112 | 143 | 5500 | 1.28 |
| 20314-MBMN | — | 70 | 150 | 35 | 184 | 215 | 4450 | 3.15 |
| 20214-TVPMN | — | 70 | 125 | 24 | 107 | 133 | 5700 | 1.17 |
| 20313-MBMN | 20313-K-MB-C3MN | 65 | 140 | 33 | 168 | 195 | 4700 | 2.18 |
| 20213-TVPMN | 20213-K-TVP-C3MN | 65 | 120 | 23 | 94 | 117 | 6000 | 1.08 |
| 20312-TVPMN | 20312-K-TVP-C3MN | 60 | 130 | 31 | 147 | 171 | 4950 | 1.92 |
| 20212-TVPMN | 20212-K-TVP-C3MN | 60 | 110 | 22 | 85 | 100 | 6600 | 0.836 |
| 20311-TVPMN | 20311-K-TVP-C3MN | 55 | 120 | 29 | 120 | 138 | 5400 | 1.53 |
| 20211-TVPMN | 20211-K-TVP-C3MN | 55 | 100 | 21 | 74 | 85 | 7100 | 0.653 |
| 20310-TVPMN | 20310-K-TVP-C3MN | 50 | 110 | 27 | 108 | 118 | 5800 | 1.17 |
| 20210-TVPMN | 20210-K-TVP-C3MN | 50 | 90 | 20 | 59 | 69 | 7700 | 0.499 |
| 20309-TVPMN | — | 45 | 100 | 25 | 87 | 94 | 6500 | 0.914 |
| 20209-TVPMN | 20209-K-TVP-C3MN | 45 | 85 | 19 | 52 | 58 | 8400 | 0.441 |
