FLENDER N-EUPEX DK, Assembly And Operating Instructions Manual

Page: 29 / 68

Assembly
5.1 Preparatory work
M3105-02en Edition 09/2022 29
4. Machine the finished bore in accordance with the diagram below.
,7 $
$
7 ,
ෘ
'
Figure 5-1: Tolerances for finished bore
① Coupling part 1
5.1.2 Milling the parallel keyway
5.1 Preparatory work
Position of the parallel keyway
The table below states the required position for the parallel keyway in the coupling parts.
Coupling part Position of the parallel keyway
1 Centred between the flexible element bridges
Table 5-2: Position of the parallel keyway
Applicable standards
• If the coupling is intended for use under normal operating conditions, mill the parallel
keyway according to DIN 6885/1 ISO JS9 in coupling part 1 (101) and (102).
• If the coupling is intended for use in reversing operation, mill the parallel keyway accord-
ing to DIN 6885/1 ISO P9 in coupling part 1 (101) and (102).
• If you want to mill a parallel keyway that does not correspond to DIN 6885/1, please con-
sult Flender.
5.1.3 Machining an axial locking mechanism
5.1 Preparatory work
The coupling part is secured by a set screw or an end plate to prevent axial movements.
Please consult Flender if you want to use an end plate.
Note the following when using a set screw:
• Diameter and axial position of the threaded hole in the hub
• Position of the threaded hole with respect to the parallel keyway