Berührfläche einer Walz- oder Gleitpaarung

摘要

The rolling/sliding outer ring of the cam follower apparatus is made to withstand peeling very well, even in severe lubrication conditions, by forming a surface layer in the depth 0 to 50 mu m from the outer peripheral surface of the outer ring, such that the maximum residual compressive stress in this surface layer is between 50 and 110 kgf/mm2, the hardness of this surface layer is between Hv 830 and Hv 960, and the amount of residual austenite in the surface layer is at least 7 volume %, and formed with continuous minute irregularities on the surface with convexities of the irregularities having an equivalent roundness diameter up to 15 mu m for the case that the concavities of the irregularities are assumed to occupy 80% of the total surface area, while the inner peripheral surface of the outer ring is superfinished.