Loaʻa nā KGG Ball Bearings i kahi apo i waho, kahi apo i loko, a me ka nui o nā wili a me nā spacers. ʻO ke kāʻei me ka pololei rotation kiʻekiʻe hiki ke lawe i nā ukana ma kēlā me kēia ʻaoʻao. No ka mea, ua hoʻonohonoho pono ʻia nā huila cylindrical, hiki iā ia ke halihali i nā ukana ma kēlā me kēia ʻaoʻao. Hāʻawi ʻo KGG i ʻelua ʻano bearings: Deep Groove Ball Bearing a me Angular Contact Ball Bearings.