| 摘要 |
A device for the variable driving of a hollow shaft and an inner shaft or spindle that is supported on the latter and lies inside it, is particularly suited for moving component parts of a tire building machine, using driving devices. The hollow shaft is coupled to the inner shaft or spindle by way of a planetary gear mechanism or a harmonic-drive gear mechanism, which is respectively constructed as a differential-speed gear mechanism. The hollow shaft and the shaft or spindle are made to run synchronously by way of a single driving device.
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