
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 | UCFL307-20 | |
| Nrụpụta Mba. | UC307-20 | |
| Ebe obibi | FL307 | |
| Nha Bolt | 3/4 | |
| Obere dayameta | d | 1-1/4 nke anụ ọhịa |
| Mgbakọta Ogologo | a | 7-9/32 n'arọ |
| oghere oghere Bolt | e | 5-35/64 n'arọ |
| Ọgwụgwụ Center of Bearing from Housing | i | 25/32 nke |
| Obosara flange | g | 5/8 nke |
| Obosara ụlọ | l | 1-13/32 n'arọ |
| Nha oghere Bolt | s | 29/32 nke |
| N'ozuzu ogologo | b | 3-15/16 nke |
| N'ozuzu obosara unit | z | 1-59/64 nke |
| Obosara mgbanaka ime | B | 1.8898 n'arọ |
| Center of Bearing from Bearing End | n | 0.748 n'arọ |
| Ibu ibu | 1.73 n'arọ | |