Double angular ball bearing for storage of spindle of machine tool, has single-piece outer ring including radial inner lateral surface with radially and outwardly extending recess provided between shoulders of outer ring

摘要

The bearing (1) has a single-piece outer ring (2) including two outer tracks (4, 5) and an inner ring (3) with two inner ring halves and two inner tracks (6, 7). The ring (2) has shoulders (12, 13), and the ring (3) has shoulders (14, 15). Supporting balls (8, 9) are arranged between the rings at the shoulders, and supported in a pressure angle direction, to axially prestress the bearing. A radial inner lateral surface (24) of the ring (2) has a radially and outwardly extending recess (25) provided between the shoulders (12, 13).