Bọọlụ KGG nwere mgbanaka mpụta, mgbanaka dị n'ime, yana ọtụtụ rollers na spacers.The bearing na elu ntụgharị ziri ezi nwere ike ibu ibu n'akụkụ ọ bụla.N'ihi na ọ na-ahazi rollers cylindrical orthogonally, ọ nwere ike iburu ibu n'akụkụ ọ bụla.KGG na-enye ụdị bearings abụọ: Deep Groove Ball Bearing na Angular Contact Ball Bearings.