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.
steel comp e52100 overall material, 4.7400 inches minimum and 4.7500 inches maximum outside diameter, sae 52100 assn std single material response overall material document and classification, 3.2000 inches minimum and 3.2050 inches maximum bore diameter, 0.2060 inches minimum and 0.2100 inches maximum overall width