Eccentric ọla kọpa aka uwe bụ na-egwu ọrụ nke bearings, bụ nke ndị na-amị amị Atiya, bụ na slide esemokwu n'okpuru ọrụ bearings, ikwu na aro bụ n'usoro, n'ozuzu mkpa aka na lubrication usoro ọrụ.
Usoro nkedo:Ihe nkedo centrifugal, nkedo aja, nkedo igwe
Ngwa:Ngwuputa ihe, ngwuputa coal, ụlọ ọrụ igwe
Mmecha elu:Nhazi
Ihe:Bronze, Brass