一種可拆卸部件,軸頸、軸頸、樞軸或類似物可在其內或上移動。它用於承載負載並減少滑動摩擦。它不使用滾動元件。它可以分成兩段或多段,每段的夾角不超過 180 度(3.141 弧度)。該部件具有圓柱孔,其外部設計基本為球形,以允許軸不對中。不含:自調心滑動軸承。
bearing, spherical part name assigned by controlling agency, maximum temperature: 550f special test features, has retention groov:ring is aluminum;material: ball 440c or 440p cres heheat treated to rockwell c56 min,retainers and ring: 17-4ph or 431 cres heat treated to rockwell 034-c38,finish: retainers,ring and ball bore - none, ball o.d. surface finish shall not exceed 6 microinches rms,no lubrication required special features