Unsupported with
straight upper run FLG
2. most applications the e-chain® can
be used unsupported FLB without any problems.
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.
3. 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.
The maximum unsupported length depends the fill weight and the type e-chain® e-tube. The e-chain®
or e-tube should replaced these cases. Unsupported with straight upper run FLG
Thee-chain® isunsupportedFLG whentheupperrunstillhascamber,isstraightorhasamaximum
sag 1/2 the e-chain® link height. Applications may reach critical sag after long service times.
3.
More information www.
2. Critical sag
Unsupported
If the upper run the e-chain® operates without touching the lower run over the entire travel, is
called unsupported application. Critical sag
When the sag the e-chain® higher than allowed for FLB, critical sag. The distance between moving end and the beginning the
radius curve the e-chain® called the unsupported length.igus. Using e-chain®
in critical sag should avoided solved with special solutions.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. The unsupported application is
the most common.igus. Unsupported with
permitted sag FLB
3. e-chain® should never be
installed with critical sag.
The FLG type installation
always generates the
longest service life and
can operated with the
max. The
e-chain® runs smoothly without additional vibration. Installing the e-chain® FLG always recommended. values for speed and
acceleration
1.
2.eu
. 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. (Please consult igus®)
● Design the travel distance gliding application
Example unsupported with sag, FLB
Support the FLG area.
As result, differentiate among three types unsupported length:
1.117
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. There are restrictions concerning the maximum
speed and acceleration. The overall travel distance can extended to
a maximum 100% from FLB
3D CAD, configurators, service life calculation and more www. igus® e-chains® are very well suited for high dynamics and long service life. The overall straight, unsupported travel can increased
here maximum 50% the FLG and case option maximum 100%
Support the FLB area
