| 摘要 |
Pulley-bearing assembly (10) provided with a pulley (8) and a rolling bearing (11) confined by respective coupling surfaces (112)(122) co-axial each other and defining a groove (140) in between; the rolling bearing (11) being provided with two rows (13, 14) of rolling bodies (15) having pitch diameters (D, Di) of different size, and a metallic ring (30) being pressed into the groove (140) and deformed so as to join the pulley (8) with the bearing (11). |
