
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 | UCF309 | |
| Nrụpụta Mba. | UC309 | |
| Ebe obibi | F309 | |
| Obere dayameta | d | 45 mm |
| Obosara ụlọ / dayameta | a | 160 mm |
| Ebe dị anya n'ịtinye oghere | e | 125 mm |
| Ebe ịrị elu elu ka ibu center | i | 25 mm |
| Ogologo ụkwụ ụlọ / elu flange | g | 18 mm |
| Ogologo ụlọ | l | 44 mm |
| Ntụnye oghere oghere | s | 19 mm |
| Ngụkọta elu site na mgbago elu | z | 60 mm |
| Obosara mgbanaka ime | B | 57 mm |
| Anya ihu akụkụ/ebe etiti | n | 22 mm |
| Nha Bolt | M16 | |
| Ibu ibu | 3.4 n'arọ | |