DISCRETE TYPE PLURAL ROW ANGULAR BALL BEARING, OUTER RING ASSY AND INNER RING ASSY

摘要

PROBLEM TO BE SOLVED: To provide a discrete type plural row angular ball bearing, its outer ring assy and its inner ring assy showing a high dimensional accuracy and assuring compatibility between other outer ring assy and inner ring assy.SOLUTION: A discrete type plural row angular ball bearing 100 comprises an outer ring 116, an inner ring 118 and two rows of balls 120, 122. The outer ring 116 has a counter-bore shape 134 where a raceway groove 132 of two rows raceway grooves 130, 132 lacks a shoulder. The inner ring 118 has a counter-bore shape 142 where a raceway groove 140 of two rows raceway grooves 138, 140 lacks a shoulder. The outer ring assy 124 comprises the outer ring 116 and a row of balls 120 held in the raceway groove 130. The inner ring assy 126 comprises the inner ring 118 and a row of balls 122 held at the raceway groove 140. The balls 120 at the outer ring assy 124 show a feature that they have a size of predetermined assembly width accuracy in respect to a reference inner ring having an ideal shape having a nominal size.SELECTED DRAWING: Figure 2