
Usoro nke UC na-ezo aka na ahaziri ahazi, ejiri ọtụtụ ebe Ohiri isi ngọngọ nkeji bọọlụ nwere aka nkwụnye aka. N'ime isi ha bụ bọọlụ nwere oghere dị omimi nke nwere a dayameta mpụta okirikiri (SPB) emebere ka ọ dabara n'ime oghere okirikiri dabara adaba nke ụlọ nkedo. Na-akwado metric akụkụ, A na-ahazi usoro isiokwu a maka ngwa mmepụta ihe na-achọ ikike ibu dị elu, nrụnye kwụ ọtọ, na arụmọrụ a pụrụ ịdabere na ya.
| ISO | UCFL204 | |
| Nrụpụta Mba. | UC204 | |
| Ebe obibi | FL204 | |
| Nha Bolt | M10 | |
| Obere dayameta | d | 20 mm |
| Mgbakọta Ogologo | a | 113 mm |
| oghere oghere Bolt | e | 90 mm |
| Ọgwụgwụ Center of Bearing from Housing | i | 15 mm |
| Obosara flange | g | 11 mm |
| Obosara ụlọ | l | 25.5 mm |
| Nha oghere Bolt | s | 12 mm |
| N'ozuzu ogologo | b | 60 mm |
| N'ozuzu obosara unit | z | 33.3 mm |
| Obosara mgbanaka ime | B | 31 mm |
| Center of Bearing from Bearing End | n | 12.7 mm |
| Ibu ibu | 0,41 n'arọ | |