Plain Linear Bearing - Square Flanged SFPM30C 30mm Compensated IDSquare flanged plain linear bearing with a 30mm ID, a compensated running clearance, and a standard size aluminum housing featuring a self lubricating Simplicity FrelonGOLD liner bonded directly to the bore of the housing. The square flange allows secure mounting to a machine frame or plate, while the bore lining supports maintenance free linear, rotational, and oscillating motion along a round shaft. Unlike recirculating ball bearings, the FrelonGOLD