滾珠軸承或滾柱軸承的內部組件,為減摩軸承的滾動元件提供接觸面。
2.0050 inches minimum and 2.0100 inches maximum overall width, 4.2476 inches minimum and 4.2485 inches maximum overall outside diameter, straight bore shape, steel comp e4340h or steel comp 4720 or steel comp 8620 or steel comp 8720 or steel comp 1018 or steel comp 1117 or steel comp e51100 or steel comp e52100 or steel comp 1022 overall material, 3.7492 inches minimum and 3.7500 inches maximum bore diameter