Clearance joints 1 Contact and friction 1 Contact/Impact 1 Dynamic wear 1 Dynamics characteristic 1 Friction 1 Mechanical systems 1 Mechanisms 1 Planar mechanism Revolute clearance joints 1 Wear characteristics 1 Wear model 1 Wear of materials 1 clearance joint 1 contact and friction 1 dynamics characteristics 1 planar mechanism 1 wear 1