UC Series - Standard duty, setscrew locking type with wide inner ring bearing. Triple lip seals (R3 suffix) optional.
HC Series - Standard duty, eccentric locking collar type with wide inner ring bearing. Triple lip seals (R3 suffix) optional.
UCX Series - Medium duty, setscrew locking type with wide inner ring bearing.
SA..G Series - Light duty narrow inner ring bearing with a spherical OD, full cover metal slinger seals, eccentric collar locking, and re-lubrication groove with oil hole on set screw side. Available non-relubricable (remove the G suffix)
SB..G Series - Light duty narrow inner ring bearing with a spherical OD, full cover metal slinger seals, set screw locking, and re-lubrication groove with oil hole on set screw side. Available non-relubricable (remove the G suffix).
SER Series - Standard duty, setscrew locking type with cylindrical OD and wide inner ring bearing and snap ring on setscrew side.


| Model | Shaft diameter d | D (inch ) | Width (inch ) | Outer ring width (inch) |
| UC201-12MM | 12 mm | 1.8504 | 1.2200 | 0.6693 |
| UC201-8 | 1/2 in | 1.8504 | 1.2200 | 0.6693 |
| UC201-8S | 1/2 in | 1.5748 | 1.0790 | 0.5512 |
| UC202-10 | 5/8 in | 1.8504 | 1.2200 | 0.6693 |
| UC202-10S | 5/8 in | 1.5748 | 1.0790 | 0.5512 |
| UC202-15MM | 15 mm | 1.8504 | 1.2200 | 0.6693 |
| UC203-11 | 11/16 in | 1.8504 | 1.2200 | 0.6693 |
| UC203-17MM | 17 mm | 1.8504 | 1.2200 | 0.6693 |
| UC204-12 | 3/4 in | 1.8504 | 1.2200 | 0.6693 |
| UC204-20MM | 20 mm | 1.8504 | 1.2200 | 0.6693 |
| UC205-14 | 7/8 in | 2.0472 | 1.3400 | 0.6693 |
| UC205-15 | 15/16 in | 2.0472 | 1.3400 | 0.6693 |
| UC205-16 | 1 in | 2.0472 | 1.3400 | 0.6693 |
| UC205-25MM | 25 mm | 2.0472 | 1.3400 | 0.6693 |
| UC206-17 | 1-1/16 in | 2.4409 | 1.5000 | 0.7480 |
| UC206-18 | 1-1/8 in | 2.4409 | 1.5000 | 0.7480 |




