安裝在軸承和軸承座之間的剛性管狀物,主要設計為軸承座內壁內的可更換磨損表面。
steel,mil-s-6758 comp 4130 cond c,cadmium-plated qq-p-416,rockwellhardness rating c scale 34 to 38,dim.,3.143 in. min,3.148 in. max od,2.875in. nom id,0.245 in. min,0.250 in. max lg,2.500 in. nom internal flange dia0.057 in. min,0.067 in. max internal flange w,max surface finish,allsurfaces 100 microinches,left and right ends parallel within 0.005 tir general characteristics item description