HEIDENHAIN Feed Transmission Precision Series Lecture 3: Ball Screw Bearings

September 24 19:00:48, 2024

In the above test, if the lead screw can be freely extended, the feed axis will exhibit different error characteristics. Figure 1 shows the different screw bearing fixing methods. 1. When the single-side fastening screw is fastened on one side, the lead screw can be freely extended from the fastening end according to the temperature distribution. The thermodynamic zero of the feed shaft is located at the screw-tight end bearing. This means that in theory only the screw nut can be used to completely prevent the hot expansion of the screw.

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