Crankshaft main bearing failure in variable compression ratio engines having eccentric main bearing supports is prevented by supporting the bearings in a crankshaft cradle having a high stiffness and a high natural frequency. The contacts include a number of first contacts and second contacts arranged side by side along a transverse direction, respectively. Each collection of media assets are represented as a navigation axis along which the media assets in a respective collection can be located, and a media asset can be associated with multiple collections of media assets based on the relational metadata. Rotation of the ball is employed for training certain strokes or segments of strokes, and the circumferential line is employed for training certain strokes or segments of strokes. The electric conductive elements have at least one deformation absorbing portion for absorbing a deformation of the electric conductive elements.