
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 | UCFL308-25 | |
| Nrụpụta Mba. | UC308-25 | |
| Ebe obibi | FL308 | |
| Nha Bolt | 3/4 | |
| Obere dayameta | d | 1-9/16 nke |
| Mgbakọta Ogologo | a | 7-7/8 n'arọ |
| oghere oghere Bolt | e | 6-7/32 n'arọ |
| Ọgwụgwụ Center of Bearing from Housing | i | 29/32 nke |
| Obosara flange | g | 21/32 nke |
| Obosara ụlọ | l | 1-9/16 nke |
| Nha oghere Bolt | s | 29/32 nke |
| N'ozuzu ogologo | b | 4-13/32 nke |
| N'ozuzu obosara unit | z | 1-13/64 nke |
| Obosara mgbanaka ime | B | 2.0472 n'arọ |
| Center of Bearing from Bearing End | n | 0.748 n'arọ |
| Ibu ibu | 2,205 n'arọ | |