Fitting With Integrated Du Bush; Fitting With Loose Du Bush; Axial Fastening - Siemens FLENDER H SH Series Assembly And Operating Instructions Manual

6.5.2.1 Fitting with integrated DU bush

• Fit the gear unit by means of a nut and a threaded spindle. The support is provided by the hollow shaft.
The hollow shaft must be exactly aligned with the machine shaft to avoid canting.
When fitting, ensure that the position of the teeth between the machine shaft and
hollow shaft is correct. The correct position can be determined by turning the input
shaft and/or by swivelling the gear unit lightly around the hollow shaft.
Fig. 47: Hollow shaft with internal spline, mounting with DU bush
1 Machine shaft
2 Hollow shaft
3 DU bush

6.5.2.2 Fitting with loose DU bush

The loose DU bush is pushed onto the machine shaft, fixed rigidly in position with a locating tie and then
pulled into the hollow shaft along with the machine shaft (see fig. 47).
The hollow shaft must be exactly aligned with the machine shaft to avoid canting.
When fitting, ensure that the position of the teeth between the machine shaft and
hollow shaft is correct. The correct position can be determined by turning the input
shaft and/or by swivelling the gear unit lightly around the hollow shaft.
Instead of the nut and threaded spindle shown in the diagram, other types of equipment such as a hydraulic
lifting equipment (type "Lukas") may be used.
The hollow shaft may be tightened against a machine­shaft collar only if the gear­unit
configuration is one of the following:
­ Torque arm
­ Support with gear­unit swing base
With a different arrangement the bearings may be excessively stressed.

6.5.2.3 Axial fastening

Depending on type, secure the hollow shaft axially on the machine shaft (e.g. with locking ring, end plate,
set screw).
7
5
6
4 Nut
5 Threaded spindle
6 Nut
BA 5030 en 02/2013
56 / 96
3
1
4
2
7 End plate