Biriki ɲɛnamaya bɛ nɔ bila fɛn caman na, i n’a fɔ a suguya, a bonya, a kɛcogo, a tulu kɛcogo ani a baarakɛyɔrɔ. A ka c’a la, biriki minnu ka ɲi kosɛbɛ, olu si bɛ mɛn baarakɛcogo la, nka nafa kɛrɛnkɛrɛnnenw ka gɛlɛn ka kɛɲɛ ni sariya ye. Roller bearings bɛnnen don doni caman kɛli ma (doni hakɛ ka bon), ka sɔrɔ ball bearing bɛnnen don teliya-doni caman kɛli ma, doni dɔgɔman-doni baara la. A ka c’a la, biriki belebelebaw si bɛ mɛn. Nɛgɛ min bɛ kɛ ni nɛgɛ ye min ka ɲi-, o funteni furakɛli bɛ dɔ fara a gɛlɛya kan (HRC 58-62) ani a sɛgɛnbaliya, o bɛ dɔ fara a si janya kan. Tumu kɛcogo nafa ka bon kosɛbɛ ɲɛnamaya kɔnɔ. Tumu ɲuman bɛ dɔ bɔ sɔgɔsɔgɔninjɛ la (coefficient de friction<0.0015) and lowers temperature rise (<80°C). Harsh environments (such as high temperatures >120°C and high humidity >80% RH) bɛ se ka mɔgɔ si hakɛ surunya kosɛbɛ.
Generator bearings require high load capacity (dynamic load >50kN) ani sɛgɛnbaliya, ani sigili (IP65 hakɛ) walasa ka aw tanga buguri ni ji ma. Ladonni tuma bɛɛ (ka tulumafɛnw lajɛ sanga 500 o sanga 500) ani ka birikiw sugandi minnu ka ɲi kosɛbɛ (i n’a fɔ ISO 9001 ka seereyaw) bɛ se ka ɲɛnamaya janya.
