Cat® Retaining rings are installed into machined grooves in housings/bores (internal) or on shafts (external) and are engineered for strength and longevity in a variety of applications. Cat® Cylinder Rings are used in static sealing and some dynamic applications. Cat® Rings are made from materials that are matched to the fluids, temperatures and pressures found in Cat® machines. Dimensions of our Rings are consistently held to tight tolerances to ensure they fit properly into grooves with the necessary firmness.Application:Cat® Retaining rings are used in steering cylinder of Cat® Machines. Consult your owner's manual or contact your local Cat® Dealer for more information.