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.