A rigid item usually circular in shape, designed to accommodate a bearing. It positions the bearing but does not encase it or restrain its motion.
copper alloy 903 overall material, 0.2450 inches minimum and 0.2550 inches maximum overall width, 0.3750 inches nominal outside diameter, aligning style designator, qq-c-390 aly d5 ty 3 fed spec single material response overall material document and classification