| Bearing No. | Boundary Dimensions(mm inch) | |||
| d | D | B | C | |
| UC208 | 40 | 80 | 49.2 | 21 |
| UC208-24 | 1-1/2 | 3.1496 | 1.937 | 0.8268 |
| UC208-25 | 1-9/16 | - | - | - |
| UC209 | 45 | 85 | 49.2 | 22 |
| UC209-26 | 1-5/8 | 3.3465 | 1.937 | 0.8661 |
| UC209-27 | 1-11/16 | - | - | - |
| UC209-28 | 1-3/4 | - | - | - |
| UC210 | 50 | 90 | 51.6 | 24 |
| UC210-29 | 1-13/16 | 3.5433 | 2.0315 | 0.9449 |
| UC210-30 | 1-7/8 | - | - | - |
| UC210-31 | 1-15/16 | - | - | - |
| UC210-32 | 2 | - | - | - |
| UC211 | 55 | 100 | 55.6 | 25 |
| UC211-32 | 2 | 3.937 | 2.189 | 0.9843 |
| UC211-33 | 2-1/16 | - | - | - |
| UC211-34 | 2-1/8 | - | - | - |
| UC211-35 | 2-3/16 | - | - | - |
| UC212 | 60 | 110 | 65.1 | 27 |
| UC212-36 | 2-1/4 | 4.3307 | 2.563 | 1.063 |
| UC212-37 | 2-5/6 | - | - | - |
| UC212-38 | 2-3/8 | - | - | - |
| UC212-39 | 2-7/16 | - | - | - |
| UC213 | 65 | 120 | 65.1 | 28 |
| UC213-40 | 2-1/2 | 4.3307 | 2.563 | 1.1024 |