| 摘要 |
A roller for a conveyor comprises a roller shaft, a generally cylindrical roller tube rotatably mounted to the roller shaft, and an axially moveable shuttle disposed at one end of the roller shaft. The shuttle is moveable between an extended position and a retracted position. A spring biases the shuttle to the extended position. The shuttle has a tapered-end portion which mates with a mounting hole in a frame member supporting the roller. The spring urges the tapered-end portion of the shuttle into engagement with the mounting hole in the frame so as to eliminate play between the shuttle and the mounting hole.
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