ʻO nā huila huila tapered he ʻehā mau ʻāpana pili: ʻo ka cone (ke apo i loko), ke kīʻaha (ke apo o waho), nā wili liʻiliʻi (rolling elements) a me ka hale (roller retainer). Hoʻohana ka Metric series medium a me ka steep-angle tapered roller bearings i ke code angle contact "C" a i ʻole "D" ma hope o ka helu ʻana, ʻoiai ʻaʻole hoʻohana ʻia ke code me nā bearings kihi maʻamau. Hoʻohana mua ʻia nā bearings roll tapered medium-angle no nā kumu pinion o nā ʻano ʻokoʻa i nā kaʻa.
