
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 | SB203 | |
| Obere dayameta | d | 17 mm |
| Dayameta dị n'èzí | D | 40 mm |
| N'ozuzu ibu obosara | B | 22 mm |
| Obosara mgbanaka mpụta | C | 12 mm |
| Center of Bearing from End | s | 6 mm |
| Anya site na mkpọchi ihu akụkụ ngwaọrụ gaa n'okporo ụzọ agbụrụ | s1 | 16 mm |
| Tọọ ịghasa | ds | M5X0.8 |
| Anya site n'akụkụ ihu ruo etiti eri | G | 4.5 mm |
| Ebe dị anya nke OR ruo etiti mpaghara mmanu mmanu | F | 3.4 mm |
| Ndekọ ibu dị ike | C | 5,8 kN |
| Ndekọ ibu kwụ ọtọ | C0 | 2.8 kN |
| Ibu ibu | 0,09 n'arọ | |