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A spherical plain bearing allows angular rotation about a central point in two orthogonal directions within a specified angular limit based on its geometry. These bearings typically support a rotating shaft in the bore of the inner ring, facilitating both rotational and angular movement.
Spherical roller bearings feature two rows of rollers, a common spherical outer ring raceway, and two inner ring raceways angled to the bearing axis. The center of the spherical outer ring raceway aligns with the bearing axis.
Self-aligning spherical bearings, first utilized by James Nasmyth around 1840, were designed to support line shaft bearings in mills and machine shops. These bearings are self-adjusting, accommodating shaft misalignment relative to the housing, which can result from shaft deflection. Spherical roller bearings are designed to handle heavy radial loads and significant axial loads in both directions.
Spherical bearings are crucial in various applications where rotational motion requires flexible alignment of its rotational axis. One example is in vehicle control arm suspension systems. These systems allow the drive axle to move up and down and enable the wheel to turn for steering. Spherical bearings are often found in smaller sub-components of such suspensions, such as certain types of constant-velocity joints.
| Sr | Bearing No. | d | D | B |
|---|---|---|---|---|
| 1 | 22208 | 40.00 | 80.00 | 23.00 |
| 2 | 22209 | 45.00 | 85.00 | 23.00 |
| 3 | 22210 | 50.00 | 90.00 | 23.00 |
| 4 | 22211 | 55.00 | 100.00 | 25.00 |
| 5 | 22212 | 60.00 | 110.00 | 28.00 |
| 6 | 22213 | 65.00 | 120.00 | 31.00 |
| 7 | 22214 | 70.00 | 125.00 | 31.00 |
| 8 | 22215 | 75.00 | 130.00 | 31.00 |
| 9 | 22216 | 80.00 | 140.00 | 33.00 |
| 10 | 22217 | 85.00 | 150.00 | 36.00 |
| 11 | 22218 | 90.00 | 160.00 | 40.00 |
| 12 | 22219 | 95.00 | 170.00 | 43.00 |
| 13 | 22220 | 100.00 | 180.00 | 46.00 |
| 14 | 22222 | 110.00 | 200.00 | 53.00 |
| 15 | 22224 | 120.00 | 215.00 | 58.00 |
| 16 | 22226 | 130.00 | 230.00 | 64.00 |
| 17 | 22308 | 40.00 | 90.00 | 33.00 |
| 18 | 22310 | 50.00 | 110.00 | 40.00 |
| 19 | 23022 | 110.00 | 170.00 | 45.00 |
| 20 | 23026 | 130.00 | 200.00 | 52.00 |
Selected sizes shown. For the complete size chart and cross-references, contact our team or view the Export Catalogue.
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