15
FLUDEX 4600 en
Operating instructions 10/2017
For drive by means of parallel keys the following fit pairs are prescribed for the bores:
Table 2:
Fit pairs
Selection of fit
Bore D
1
Shaft tolerances
Bore tolerances
over
mm
up to
mm
Shaft tolerance
to FLENDER standard
25
k6
H7
25
100
m6
100
n6
Shaft tolerance
to DIN 748/1
50
k6
H7
50
m6
System standard shaft
50
h6
K7
50
M7
all
h8
N7
The assigned fits must be adhered to in order, on the one hand, to keep the play in the
shafthub connection as low as possible, depending on utilisation of the tolerance
zones, or, on the other, to keep the hub tension arising from the oversize within the
permissible load limit. Failure to adhere to the fits may impair the shafthub
connection.
If the tolerance values of the shafts deviate from those in table 2, Flender must be
consulted.
Failure to observe these instructions may result in breakage of the coupling.
Danger from flying fragments.
The coupling then becomes an explosion hazard.
6.1.2
Parallel keyway
The parallel keyways must be designed in accordance with DIN 6885/1. If the keyway geometry deviates,
Flender must be consulted. Taper keys or nose keys (gib headed keys) are not permissible.
The parallel keyways must be designed to suit the available parallel keys. For parallel keyways the
tolerance zone of the hub keyway width
ISO JS 9
must be adhered to.
The parallel keyway must be machined as shown in the illustration.
Part 4
Part 13
Part 32
Part 1
Part 2
Part 5
Part 9
Fig. 5:
Parallel keyway
6.1.3
Axial fastening
The hollow shaft (106) of the FLUDEX coupling is secured axially with a locking plate (140) and retaining
screw (141) (included in delivery) (for tightening torques, see table 3).
Table 3:
Tightening torques of the retaining screws
Retaining-screw thread
M6
M8
M10
M12
M16
M20
M24
M30
Tightening torque [Nm]
10
25
49
86
160
300
500
800
A set screw or end plate must be provided to secure the NEUPEX addon coupling axially. If end plates
are used, Flender must be consulted with regard to machining the recesses in the coupling parts.
Summary of Contents for Flender FLUDEX 4600 FAD Series
Page 2: ......