SYNTEX
®
-NC
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
46110 EN
12 of 23
4
Please observe protection
note ISO 16016.
Drawn:
2017-02-10 Pz/Koh
Replacing:
KTR-N dated 2014-08-11
Verified:
2017-03-03 Pz
Replaced by:
The power transmission of
SYNTEX
®
-NC
with hub design 6.1 is frictionally engaged. The necessary surface
pressure is transmitted via the clamping ring to the clamping ring hub and consequently to the shaft. The torques
or surface pressure specified in table 5 have to be considered.
The stiffness and dimensions of the shafts (here specifically hollow shafts) have to be selected in a way that
sufficient safety against plastic deformation is ensured. This may roughly be reviewed as per the following
criterion.
With clamping connections with hollow shafts the
internal diameter of the hollow shaft d
iW
required is
calculated based on the following formula:
mm
R
p
2
R
d
d
2
,
0
p
W
2
,
0
p
iW
Shear stress on the internal shaft diameter for hollow
shaft:
2
2
W
W
tiW
mm
/
N
C
1
p
2
Shear stress for solid shaft:
2
W
tW
mm
/
N
p
R
p0.2
= yield strength of shaft material [N/mm
2
]
d
iW
= internal diameter of hollow shaft [mm]
p
W
= surface pressure of hub/shaft [N/mm
2
]
d
= shaft diameter [mm]
C
W
= d
iW
/ d
The strength required is not provided if the hollow shaft bore is bigger than the max. internal bore calculated or if
the shear stress exceeds the yield strength of the material.
For a detailed calculation please contact KTR.
Mount the SYNTEX
®
-NC on the shaft of the driving or
driven side each depending on the hub design as per
chapter 4.4 or 4.5, respectively.
Clean the hub bore of the ROTEX
®
GS clamping hub
(component 5) and review for dimensional accuracy,
afterwards lubricate with a thin-fluid oil (e. g. Castrol
4 in 1 or Klüber Quietsch-Ex).
Illustration 12: SYNTEX
®
-NC with ROTEX
®
GS
!
Oils and greases containing molybdenum
disulfide or other high-pressure additives
as well as internal lubricants must not be
used.
Mount the ROTEX
®
GS clamping hub on the shaft of the driving or driven side.
Tighten the cap screws of the ROTEX
®
GS clamping hub to the tightening torques T
A1
specified in table 3.
Hand-tighten the ROTEX
®
GS driving flange (component 3) with the SYNTEX
®
-NC coupling for the time being.
Tighten the cap screws (component 6, see illustration 11) crosswise to the tightening torques T
A
specified in
table 6.
Insert the ROTEX
®
GS spider (component 4) into the cam section of the ROTEX
®
GS clamping hub.
4
Assembly
4.6 Notes with the use of hollow shafts
4.7 Assembly of SYNTEX
®
-NC with ROTEX
®
GS
