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Unsupported with straight upper run FLG 2. 3. More information www. Applications may reach critical sag after long service times. There are restrictions concerning the maximum speed and acceleration. Critical sag Unsupported If the upper run the e-chain® operates without touching the lower run over the entire travel, is called unsupported application. (Please consult igus®) ● Design the travel distance gliding application Example unsupported with sag, FLB Support the FLG area. This option means restrictions for acceleration, speed and noise consequence three fundamental examples are detailed below - please consult igus® you are considering this possibility will gladly provide you with a detailed proposal ● Use multiband e-chain® nest two igus® e-chains® inside one another. The unsupported application is the most common. Using e-chain® in critical sag should avoided solved with special solutions. Installing the e-chain® FLG always recommended. Unsupported with permitted sag FLG The e-chain® unsupported FLB when the sag more than 1/2 e-chain® link height and less than the smallest available radius this e-chain® series.igus. The e-chain® or e-tube should replaced these cases. igus® e-chains® are very well suited for high dynamics and long service life. The FLG type installation always generates the longest service life and can operated with the max. The overall straight, unsupported travel can increased here maximum 50% the FLG and case option maximum 100% Support the FLB area.eu .igus. Critical sag When the sag the e-chain® higher than allowed for FLB, critical sag. values for speed and acceleration 1. They are essential for: ● Findingasuitablee-chain® for your fill weight and travel distance ● Identifying the maximum load for the selected e-chain® What the unsupported length insufficient? If your application, fill weight and travel fall outside the unsupported length parameters the desired e-chain®, you have the following options: ● Select stronger igus® e-chain® ● Support the e-chain® the unsupported area. The maximum unsupported length depends the fill weight and the type e-chain® e-tube. 2. 2. Unsupported with permitted sag FLB 3. The distance between moving end and the beginning the radius curve the e-chain® called the unsupported length. e-chain® should never be installed with critical sag. most applications the e-chain® can be used unsupported FLB without any problems. As result, differentiate among three types unsupported length: 1. The e-chain® runs smoothly without additional vibration. Unsupported with straight upper run FLG Thee-chain® isunsupportedFLG whentheupperrunstillhascamber,isstraightorhasamaximum sag 1/2 the e-chain® link height.eu Unsupported Short travels Example for unsupported straight FLG Unsupported Short travels For every igus® e-chain® or e-tube, you will find the valuesforFLG andFLB intwo locations: the following pages this chapter an overview and within every individual series’ chapter. 3. The overall travel distance can extended to a maximum 100% from FLB 3D CAD, configurators, service life calculation and more www.117 116 C 2 x R 1/4 S 2 x R 1/4 S 1/6 2/6 S A B R R S H F H FLG FLB S H H F S/2 S/2 R R 1