Nneɛma pii na ɛka bearing nkwa, a nea ɛka ho ne ne su, ne kɛse, nea wɔde yɛ, ɔkwan a wɔfa so srade srade, ne baabi a wɔyɛ adwuma. Bearing a ɛkorɔn-a ɛyɛ papa taa nya nkwa tenten wɔ adwumayɛ tebea a ɛfata mu, nanso ɛyɛ den sɛ wɔde gyinapɛn pɔtee bi bɛyɛ gyinapɛn. Roller bearings fata ma adesoa a ɛkorɔn-adesoa dwumadie (adesoa tumi a ɛkorɔn), berɛ a ball bearings fata ma ahoɔhare kɛseɛ, adesoa a ɛba fam-adesoa dwumadie. Mpɛn pii no, bearing akɛse no nkwa nna kyɛ. Ɔhyew a wɔde yɛ dade a wɔde afrafra a ɛyɛ papa-ma ne denden (HRC 58-62) ne nea ɛko tia sɛ ɛbɛsɛe no yɛ kɛse, na ɛnam so ma ne nkwa nna trɛw. Ɔkwan a wɔfa so de srade gu mu no ho hia kɛse ma nkwa nna. Srade pa ma friction (friction coefficient) so tew<0.0015) and lowers temperature rise (<80°C). Harsh environments (such as high temperatures >120°C and high humidity >80% RH) betumi ama nkwa nna ayɛ tiaa kɛse.
Generator bearings require high load capacity (dynamic load >50kN) ne wear resistance, ne sealing (IP65 rating) de bɔ ho ban fi mfutuma ne nsu ho. Nsiesie a wɔyɛ no daa (hwɛ srade a wɔde ahyɛ mu nnɔnhwerew 500 biara) ne bearing a ɛyɛ papa-a a wɔpaw (te sɛ nneɛma a wɔagye atom sɛ ISO 9001) betumi atrɛw nkwa nna mu.
