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5.
Technical description
Observe the instructions in section 3, "Safety instructions"!
5.1
General description
The gear unit described is a "FLENDER gear unit" developed for use as lifting and luffing gear unit.
The gear unit supplied is a three or four stage helicalgear unit. It is designed for installation in the horizontal
mounting position. If necessary, it can also be designed for installation in a different mounting position.
NOTICE
Material damage
Risk of destruction of the gear unit or gearunit components through incorrect direction of rotation.
The gear unit can be operated in both directions of rotation.
However, it is possible that a certain direction of rotation has been specified in the order which is realised
by addingon a backstop or an overrunning clutch.
The gear unit is characterised by a low noise level, which is achieved by helical gears with a high contact
ratio and a sounddamping housing.
The good temperature characteristics of the gear unit are achieved by its high degree of efficiency, large
housing surface and performancerelated cooling system.
A number of shaft configurations (types and rotation directions) are possible. These are shown in the
following table as solid shafts. The arrows with the direction of rotation show the correlation between the
directions of rotation of the input and output shafts.
Table 5:
Versions and corresponding directions of rotation
Type
K3SH, K3VH,
K3SM K3HH,
K3HM, K3KH,
K3KM, K3DH,
K3DM
K4SH, K4VH,
K4SM K4HH,
K4HM, K4KH,
K4KM, K4DH,
K4DM
5.2
Output versions
..S.
Fig. 7:
Output versions
S
Solid shaft
V
Solid shaft, reinforced
H
Hollow shaft with parallel keyway
A
B
C
..V.
BA 5846 en 05/2015
26 / 109
Version
D
E
F
..H.
..D.
D
Hollow shaft for shrink disk
K
Hollow shaft with splines
to standard "DIN 5480"
G
H
I
..K.
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