| 摘要 |
A bottom bracket bearing assembly for cycles comprising a plane bracket axle 1 into which the inner rings of bearings 4 (4', Fig.2) employing steel rollers or balls 3 (3', Fig.2) may be pressed, the outer tracks of the bearings being provided within bracket cups 2 (2', Fig.2) with outer diameters adapted to be secured in the end of the bracket shell 5. The bearings are held in place between the two pedal cranks 8, 9 with a washer 6, a spring washer, an expanding distance piece (12, 13, Fig.4), or any suitable combination of these. <IMAGE> |
