Abstract: A sealing ring for sealing against fluid leakage between mainly planar surfaces of a pair of parts that are mounted in forced relation against each other. The ring comprises, in an exemplary form, a resilient member having a radially oriented annular section, and first and second ends projecting generally in opposite axial directions, respectively, from radially inner and radially outer portions of the annular section. The first end includes a first member projecting generally axially from the annular section, a second member projecting generally radially outwardly from the first member, and a third member projecting generally axially towards the annular member, such that the first, second and third members collectively have a generally U-shaped cross-section.

Abstract: A crankshaft for combustion engines has a number of components joined to each other. Each component comprises a counterweight, a portion of a main bearing journal, and a portion of a crank bearing journal. Adjacent components are so arranged that their crank bearing journal portions are connected to each other to form a complete crank bearing journal, and their main bearing journal portions are secured to each other to form a complete main bearing journal. One of each pair of portions is longer than the other; and oil ducts extend through cavities in the components but do not communicate with those cavities. Instead, the ends of the ducts open through the journal bearing surfaces, and specifically through the longer of the two journal portions so that the opening of the ducts can be central of the journal and still not interfere with the joint between the components.