Data associated with the paper "Combined Wear and Ageing of Ceramic-on-Ceramic Bearings in Total Hip Replacement under Edge Loading Conditions". This dataset contains: - Figure 3. Cumulative wear volume of ATZ-on-ATZ and ZTA-on-ZTA bearings over eight million cycles of hip simulator testing (first 2 million cycles in standard conditions, next 6 million in edge loading conditions driven by separation). - Figure 5. Maximum penetration depth ± 95% confidence limits of the femoral heads and acetabular liners obtained from the CMM measurements - Figure 6. monoclinic fraction measured by XRD on ATZ and ZTA - Figure 7. evolution of the depth of the transformed surface layer in the wear stripe (track) measured by Raman spectroscopy; (a): ATZ; b): ZTA A link to the original images for figures 8 and 9: https://fex.insa-lyon.fr/get?k=HqnqJEZV4EBnFRJqBSx