| 摘要 |
A tool is provided for assembling cross groove constant velocity universal joints. The assembly tool comprises a cup having an open end and a base opposite the open end. The open end has an inwardly tapered rim. The dimension between the base and the rim is established to align tracks of the inner race of the universal joint with the rim. A ball cage is held in position surrounding the inner race, and balls are inserted on the rim, in the cage, and against the inner race so that they are adequately engaged in the inner race for assembly. When all of the balls are positioned in tracks of the inner race, and within the cage, an outer race is brought into position over the rim. The rim is tapered such that a sufficient periphery of the balls is exposed above the rim for engagement with tracks of the outer race. The assemblage is then inverted, allowing the inner race to drop into the outer race, carrying the balls along the tracks and the cage with the balls.
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