| 摘要 |
The bearing, comprising a rotary inner ring (1) with two separate races (4, 5), two fixed outer rings (2, 3) with races (6, 7), and rolling bodies (22, 23, 24) between them, incorporates an integral gear (9) on the outer surface of the inner ring in between its two races. The inner ring also has an axial bore with a gear (17) round its inner surface aligned in more or less the same radial plane as the external gear, with both gears having radial teeth (19). |
