Roller-bearing rotary joint used as double row angular contact ball bearings, has channel-shaped outer raceways and groove-shaped inner raceways that are arranged inside and outside of outer and inner bearing rings respectively

摘要

The rotary joint (1) has outer bearing ring (2) having several mounting bores (3) for fixing to first terminal. An inner bearing ring (4) has multiple fixing holes (5) for fixing to second terminal. The rollers (8,9) are arranged between bearing rings in adjacent rows (6,7). The channel-shaped outer raceways (13,14) are arranged inside outer bearing ring and groove-shaped inner raceways (15,16) are arranged outside the inner bearing ring.