Ob chav kab tapered bearings muaj ob lub qauv. Ob chav raceway puab nplhaib thiab dov lub cev thiab lub tawb sib dhos, ob qhov sib cais sab nrauv nplhaib. Ib hom ntawm ob cais puab nplhaib thiab dov lub cev thiab lub tawb sib dhos, tag nrho ob chav raceway txheej nplhaib sib xyaw.