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Why is the feed constant for a toothed belt axis so imprecise compared to a spindle?

April 26, 2017axis BELT constant feed imprecise spindle toothed

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Why is the feed constant for a toothed belt axis so imprecise compared to a spindle?

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The feed constant is the axial offset of the axis for exactly one revolution of the sprocket. No tolerances are specified for the feed constant. The influencing factors include the toothed belt pretension setting and the production tolerances of the toothed belt and the sprocket. Thus, the exact feed constant must be determined separately for every axis.