
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 | UCFC217 | |
| Nrụpụta Mba. | UC217 | |
| Ebe obibi | FC217 | |
| Nha Bolt | M20 | |
| Obere dayameta | d | 85 mm |
| N'ozuzu obosara | a | 250 mm |
| Dayameta oghere nke bolts mgbakwunye | P | 208 mm |
| Anya n'etiti bolts mgbakwunye | e | 147.1 mm |
| Ọgwụgwụ Center of Bearing from Housing | i | 18 mm |
| Nha oghere Bolt | s | 23 mm |
| Ogologo pilot | j | 18 mm |
| Obosara flange | k | 20 mm |
| Ebe dị anya na-agbago elu ruo n'etiti ibu | g | 45 mm |
| Pilot n'èzí dayameta | f | 180 mm |
| N'ozuzu obosara unit | z | 69.6 mm |
| Akụkụ | t | 74.6 mm |
| Obosara mgbanaka ime | B | 85.7 mm |
| Center of Bearing from Bearing End | n | 34.1 mm |
| Ibu ibu | 10,81 n'arọ | |