一種可拆卸組件,軸頸、活塞、樞軸或類似物可在其內或上移動。它用於承載載荷並減少滑動摩擦。它不使用滾動元件。此組件由一個鏜孔精密研磨球(或球面滑動軸承)及其外圈組成。該組件可以是可分離的,也可以是不可分離的。不含:桿端滑動軸承和球面滑動軸承。
0.4995 inches minimum and 0.5000 inches maximum bore diameter, 28.0 rockwell b maximum and 37.0 rockwell c maximum race insert hardness rating, 0.498 inches minimum and 0.500 inches maximum inner member width, 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member hardness rating, bearing,plain,self-lubrication,self-aligning,low speed,narrow,grooved race,-65 to +325 deg f. part name assigned by controlling agency