Abstract: A rotating assembly (22) is used, for example, as a crank assembly in an orbiting radial motor (14) to drive ring gears (16,17) or in a multiple output speed increaser or reducer. The use of more than one rotatable section connected to a first member (30), such as more than one throw on a crankshaft, can cause unequal load sharing between the sections. The rotating assembly (22) has a first member (30), a second annular member (32) positioned about the first member (30) and a third annular member (34) positioned about the second annular member (32). A first bearing element (48) positioned between the first and second members (30,32) supports the second member (32) in rotation relative to the first member. A second bearing element (56) positioned between the second and third members (32,34) supports the third member (34) in rotation relative to the second member (32).

Abstract: A wheel has a hub and a rim connected to the hub. Teeth are positioned on the outer surface of the rim and arcuately spaced one from the other by a root area. The root areas have an outer periphery and define a root diameter. The wheel has an annular opening in communication with said outer periphery of the root areas. A hoop having an outside diameter greater than the root diameter is positioned in the annular opening for movement in response to operation of the wheel and cleaning of material from the root areas in response to the movement.