A composition that includes one or more compounds represented by the formulaR1R2 wherein R1 is an alkyl group having from 4 to 40 carbon atoms, R2 is an aliphatic group having from 4 to 20 carbon atoms, an aromatic group having from 6 to 20 carbon atoms, or a cycloaliphatic group having from 5 to 20 carbon atoms, and X is a heteroatom. At least one inner race or one outer race of the rolling bearing is split into two race parts along a parting plane that runs approximately perpendicular to a longitudinal axis of the rotating component. In the preferred embodiment of the invention, a second stop arm is pivotally connected to the crossbar second end.