
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 | UCHA202-9 | |
| Nrụpụta Mba. | UC202-9 | |
| Ụlọ Mba. | HA202 | |
| Obere dayameta | d | 9/16 nke |
| Ebe etiti oche okirikiri dị elu | h | 2-33/64 nke |
| Akụkụ | w | 2-25/32 n'arọ |
| N'ozuzu ogologo | b | 64 mm |
| Akụkụ | c | 0 |
| Elu nke mgbakwunye njedebe | a | 1-37/64 nke |
| Elu nke oghere mgbakwunye | s | G3/4 nke |
| Akụkụ | l | 3/4 nke anụ ọhịa |
| Obosara mgbanaka ime | B | 1.2205 n'arọ |
| Center of Bearing from Bearing End | n | 0.5 nke anụ ọhịa |
| Ibu ibu | 0,71 n'arọ | |