
KTR Kupplungstechnik
GmbH
D-48407 Rheine
RIGIFLEX
®
-N
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
47410 EN
7 of 19
9
Please observe protection
note ISO 16016.
Drawn: 14.01.14
Kb/Sta Replaced for:
KTR-N dated 28.05.13
Verified:
16.01.14 Kb
Replaced by:
4 Assembly
4.2 Advice for finish bore
STOP
D A N G E R !
The maximum permissible bore diameters d (see table 1 in chapter 1 - technical data) must
not be exceeded. If these figures are disregarded, the coupling may tear. Rotating particles
may cause danger to life.
Bores of coupling hubs machined by the customer have to observe concentricity or axial runout, respectively
(see illustration 3).
Please make absolutely sure to observe the figures for Ø d
max
.
Carefully align the coupling hubs when the finish bores are drilled.
Please provide for a setscrew according to DIN EN ISO 4029 with a cup point or an end plate to fasten the
coupling hubs axially.
!
C A U T I O N !
A centering is not available with pilot bored or unbored hubs, respectively. It has to be
drilled according to illustration 3. Size and depth of the centering are shown in table 1.
Size 35
Size 50 - 408
Illustration 3: Concentricity and axial runout
!
C A U T I O N !
The customer bears the sole responsibility for all machining processes performed subse-
quently on unbored or pilot bored as well as finish machined coupling components and
spare parts. KTR does not assume any warranty claims resulting from insufficient rema-
chining.
W A R N I N G !
KTR supplies unbored or pilot bored coupling components and spare parts only upon ex-
plicit request of the customer. These parts are additionally labelled with the symbol
.
Table 5: Setscrews DIN EN ISO 4029
RIGIFLEX
®
-N size
35 50 65 75 85 110
120
140
160
Dimension G [mm]
M6
M6
M8 M8 M10 M10 M12 M12 M12
Tightening torque T
A
[Nm] 4.8 4.8 10 10 17 17 40 40 40
RIGIFLEX
®
-N size
166 196 216 256 306 346 406
Dimension G [mm]
M16
M16 M20 M20 M24 M24 M24
Tightening torque T
A
[Nm] 80 80 140 140 240 240 240
RIGIFLEX
®
-N size
168 198 218 258 308 348 408
Dimension G [mm]
M16
M16 M20 M20 M24 M24 M24
Tightening torque T
A
[Nm] 80 80 140 140 240 240 240