SHOULDER: Defect found on rib or outer diameter; a raised edge on rib face caused by grinding wheel; raised surface at either end of outer diameter raceway.
挡肩：外径或挡肩上发现的缺陷；挡肩上由于磨床砂轮所造成的突起；在外径滚道两端的突起。
2
The inner hole wall of the middle nest is provided with a draw limiting convex rib, and the tension spring contacts the lower end of the convex rib.
该中巢的内孔壁上设有限拉凸筋，张力弹簧抵靠该凸筋的下端。
3
A convex rib is arranged on the edge of the clamp groove. The opening end of the main clamping plate is provided with an inclined part.