A na-eji ya na-ebu nchikota nke axial na radial ibu na isi shaft ibu, ma radial ibu agaghị gafere 55% nke axial ibu. Tụnyere ndị ọzọ na-akpali ala biarin, nke a na-agba nwere a ala ọnụọgụ nke esemokwu, elu ọsọ na onwe-kwado arụmọrụ.
Mkpanaka nke 29000 amị bụ asymmetric spherical roller, nke nwere ike belata ikwu slịl nke ala na ụzọ ọrụ na-agba ọsọ. Lergbọ ala ahụ dị ogologo ma buru ibu na dayameta, ọnụ ọgụgụ nke rollers buru ibu, na ikike ibu dị elu. Na-ete mmanụ na mmanụ. Enwere ike iji mmanu mmanu mee ihe maka ọnọdụ ọ bụla dị ala.
