| 摘要 |
The present invention relates to a tandem ball bearing of a vehicle axle. For this, the tandem ball bearing of a vehicle axle which is connected to an axle shaft of an axle pinion engaging with an axle ring gear comprises a variable inner lace connected to one side of the axle shaft by tight fit; a fixed inner lace spaced apart from the variable inner lace and connected to the other side of the axle shaft by tight fit; a variable ball connected to the outer circumferential part of the variable inner lace to be rotated; a fixed ball connected to the outer circumferential part of the fixed inner lace to be rotated; and an outer lace connected in such a manner that the variable ball and the fixed ball are surrounded to be rotated. Therefore, the tandem ball bearing can reduce noise generated during operation by making only the fixed ball be operated in case that low torque is applied to the axle shaft, but can transmit driving power through sufficient support by simultaneously operating the fixed ball and the variable ball in case that high torque applied to the axle shaft. |
