| Bearing No. | Boundary Dimensions(mm inch) | |||
| d | D | B | C | |
| UC201 | 12 | 47 | 31 | 17 |
| UC201-8 | 1/2 | 1.8504 | 1.2205 | 0.6693 |
| UC202 | 15 | - | - | - |
| UC202-9 | 9/16 | - | - | - |
| UC202-10 | 5/8 | - | - | - |
| UC203 | 17 | - | - | - |
| UC203-11 | 11/16 | - | - | - |
| UC204 | 20 | - | - | - |
| UC204-12 | 3/4 | - | - | - |
| UC205 | 25 | 52 | 34.1 | 17 |
| UC205-13 | 13/16 | 2.0472 | 1.3425 | 0.6693 |
| UC205-14 | 7/8 | - | - | - |
| UC205-15 | 15/16 | - | - | - |
| UC205-16 | 1 | - | - | - |
| UC206 | 30 | 62 | 38.1 | 19 |
| UC206-17 | 1-1/16 | 2.4409 | 1.5 | 0.748 |
| UC206-18 | 1-1/8 | - | - | - |
| UC206-19 | 1-3/16 | - | - | - |
| UC206-20 | 1-1/4 | - | - | - |
| UC207 | 35 | 72 | 42.9 | 20 |
| UC207-20 | 1-1/4 | 2.8346 | 1.689 | 0.7874 |
| UC207-21 | 1-5/16 | - | - | - |
| UC207-22 | 1-3/8 | - | - | - |
| UC207-23 | 1-7/16 | - | - | - |