Siemens FLENDER H SH Series - Fitting with Integrated du Bush; Fitting with Loose du Bush; Axial Fastening

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BA 5030 en 02/2013
6.6.1.1 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.
7
5
6
3
1
4
2
Fig. 50: Hollow shaft in shrinkdisk design, mounting with DU bush
1 Machine shaft 4 Nut 7 End plate
2 Hollow shaft 5 Threaded spindle
3 DU bush 6 Nut
6.6.1.2 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. 50).
The hollow shaft must be exactly aligned with the machine shaft to avoid canting.
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 machineshaft collar only if the gearunit
configuration is one of the following:
 Torque arm
 Support with gearunit swing base
With a different arrangement the bearings may be excessively stressed.
6.6.1.3 Axial fastening
If the shrink disk is fitted according to instructions (see item 6.6), the gear unit is fixed securely in the axial
direction. Additional axial fastening is not required.