Despite the fact that the processing of nanoceramics composites have been triggered to a great extent, the evaluation of their potential in engineering application is rather limited. To this end, the present work reports the results obtained with fretting wear (mode I, linear tangential displacement sliding) of Y-TZP nanoceramics, optimally densified using spark plasma sintering route. The tribological experiments were conducted by varying normal load (2–10N) for 100,000 fretting cycles with relative displacement stroke of 50 μm at a frequency of 8 Hz. Based on the investigation of the topographical features of worn surfaces, the mechanism of material removal has been proposed. An important finding is that TZP nanoceramic/steel tribocouple exhibit an increase in COF from 0.2 to 0.5 as well as severe wear damage with increase in load from 2N to 5N and above, under the selected experimental conditions.