Lead Screw: Difference between revisions
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Theoretical estimates of life times are often based on specified ''recommended design load'' and typical operating speed. | Theoretical estimates of life times are often based on specified ''recommended design load'' and typical operating speed. | ||
It is recommended to do these calculations if you'r lead screw are going to operate at 500 rpm or higher. | It is recommended to do these calculations if you'r lead screw are going to operate at 500 rpm or higher. | ||
[http://www.thomsonlinear.com/downloads/articles/Why_Lead_Screws_Best_Fit_Linear_Motion_Applications_taen.pdf] | In the case where the combination of loading, speed and duty cycle exceeds a certain limit, failure is predictable and will occur | ||
rapidly.[http://www.thomsonlinear.com/downloads/articles/Why_Lead_Screws_Best_Fit_Linear_Motion_Applications_taen.pdf] | |||
Revision as of 12:56, 7 January 2016
Overview
A lead screw use a helix angle and a nut to convert rotary motion onto linear motion.
Life time and Maintenance
Life times are typically long and maintenance consist of lubricating.
For accurate life time estimations, a case study under controlled conditions similar to the use case is required. Theoretical estimates of life times are often based on specified recommended design load and typical operating speed. It is recommended to do these calculations if you'r lead screw are going to operate at 500 rpm or higher. In the case where the combination of loading, speed and duty cycle exceeds a certain limit, failure is predictable and will occur rapidly.[1]