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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: Biotribology (Oxf). 2021 Mar 17;26:100180. doi: 10.1016/j.biotri.2021.100180

Figure 2. Sketch of the set-up for the friction measurements.

Figure 2.

A 32 mm diameter CoCrMo ball (1) rotates equatorially against a bovine articular cartilage plug held in the explant holder (2) mounted onto a sliding stage (3) that is free to slide laterally on a linear bearing. Movements of the sliding stage are prevented by lateral constraints (4) that house the load cells measuring tangential force. The jack plate (5), moving around hinge joint (6), rests on a load cell (embedded in bottom plate (7)) that measures normal force. The whole friction device is mounted onto a single stage (8) of the four-station bioreactor (Figure originally published in [42])