ROTEX
®
Operating/Assembly instructions
Type ZR
KTR-N
Sheet:
Edition:
40215 EN
8 of 15
3
Please observe protection
note ISO 16016.
Drawn:
2018-08-28 Pz
Replacing:
KTR-N dated 2014-03-11
Verified:
2018-09-11 Pz
Replaced by:
STOP
The maximum permissible bore diameters d (see table 1
and 2 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.
Hub bores machined by the customer have to observe
concentricity or axial runout, respectively (see illustration
4).
Please make absolutely sure to observe the figures for
Ø d
max
.
Carefully align the 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 hubs axially.
Illustration 4: Concentricity and axial runout
!
The customer bears the sole responsibility for all machining processes performed
subsequently 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
remachining.
Table 3: Setscrews DIN EN ISO 4029
Size
19
24
28
38
42
48
55
65
75
Dimension G
M5
M5
M8
M8
M8
M8
M10
M10
M10
Dimension t
10
10
15
15
20
20
20
20
25
Tightening torque T
A
[Nm]
2
2
10
10
10
10
17
17
17
Table 4: Recommended fit pairs acc. to DIN 748/1
Bore [mm]
Shaft tolerance
Bore tolerance
above
up to
50
k6
H7
(KTR standard)
50
m6
If a feather keyway is intended to be used in the hub, it should correspond to the tolerance ISO JS9 (KTR
standard) with normal operating conditions or ISO P9 with difficult operating conditions (frequently alternating
torsional direction, shock loads, etc.). The keyway should preferably be located between the cams. With axial
fastening by setscrews the tapping should be located on the keyway except for Al-D which should be located
opposite the keyway.
The transmittable torque of the shaft-hub-connection must be reviewed by the customer and is subject to his
responsibility.
4
Assembly
4.2 Advice for finish bore