Brake system, brake pads and brake system for friction pair

摘要

The provided first member having a (42) cage for rotatably holding the rolling elements (41) in contact body (41) translocation and (4), in contact body (41) rotating the first member ( pressing mechanism to press the second member for rotating the cage with (42) body (41) rotating in accordance with the relative displacement and 4) and (5), the second member (4) the first member (5) ( is characterized in that and a 3). Thus, for example, can be including, without limitation, the projected area of ​​the surface on the side is pressed against the second member of the first member (4) to (5), and sets the performance appropriately.