Surface induction-hardening offers the possibility to selectively harden a component's raceway, while leaving the remainder of the component unaffected by the hardening process.
表面感应淬火提供有选择地淬硬部件滚道而部件的其余部分则不受淬火过程的影响的可能性。
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。
Their surface profile closely matches the raceway profile of the outer and inner rings.
它们的表面轮廓最接近内外圈滚道。
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