● 'O nā 'ano hana like 'ole nā lālani hui 'elua
● ʻOiai e halihali ana i ka ukana radial, hiki iā ia ke halihali i ka ukana axial bidirectional
● Radial a me axial i hui pū ʻia a me nā ukana torque, ka mea nui i hiki ke lawe i nā ukana radial nui, hoʻohana nui ʻia i nā ʻāpana e kaupalena ana i ka neʻe ʻana o ke axial ma nā ʻaoʻao ʻelua o ke kumu a me ka hale.
● He kūpono no nā noi me nā koi rigidity kiʻekiʻe.Hoʻohana nui ʻia i ka huila mua o ke kaʻa