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The Sealmaster land riding retainer is constructed of a brass two piece riveted design to provide higher strength than molded plastic retainers. High strength retainers are especially important in applications involving vibration, shock loads, and high speeds. The land riding design allows for 360 degrees circulation of lubricant around the rolling elements and ball paths. In addition, this design allows for increased grease circulation between races. Combining wide outer races with the Sealmaster retainer design results in 30% added grease capacity.