ROTEX
®
GS
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
45510 EN
17 of 40
23
Please observe protection
note ISO 16016.
Drawn:
2020-02-10 Pz/Ht
Replacing:
KTR-N dated 2019-11-22
Verified:
2020-02-10 Pz
Replaced by:
The
ROTEX
®
GS
coupling was developed for a backlash-free power
transmission and easy plug-in assembly. This backlash-free power
transmission arises in the area of prestress (see illustration 11).
The big concave surface contact results in a lower surface pressure on
the involute tooth. Consequently the tooth can be overloaded many
times over with no wear/deformation.
Safe operation in the range of prestress is ensured, because the
coupling operates according to the principle of positive-locking rubber
spring prestress with high damping features. The star-shape coupling
spider is inserted in the cams of the hubs which are machined
specifically accurately with a small amount of prestress, resulting in the
necessary backlash-free power transmission.
The axial insertion force varies depending on the coupling size,
different kinds of Shore hardness and production tolerances.
Illustration 11: Prestress of spider
The flexible teeth compensating for misalignment are radially supported in the internal diameter by means of a
web. An external deformation is limited by the concave shape of the cams, ensuring smooth operation even with
bigger masses to be accelerated (e. g. machine tables, articulated arms, etc.).
The flexible spiders for the GS series are available in five different kinds of Shore hardness, injected in different
colours, either as a torsionally soft or hard material.
Please read through these operating/assembly instructions carefully before you start up the coupling.
Please pay special attention to the safety instructions!
The
ROTEX
®
GS
coupling is suitable and approved for the use in potentially explosive
atmospheres. When using the coupling in potentially explosive atmospheres, observe the special
advice and instructions regarding safety in enclosure A.
In order to ensure the operating principle of
ROTEX
®
GS
and avoid early wear of the coupling, a respective
operating factor „S
B
“ has to be considered with the selection, each depending on the application (see catalogue
"Drive Technology"). Temperatures and shocks are provided with the corresponding factors, too (see catalogue
"Drive Technology").
The operating/assembly instructions are part of your product. Please store them carefully and close to the
coupling. The copyright for these operating/assembly instructions remains with KTR.
2
Advice
2.1 General advice
