Shaft­mounted Gear Unit With Hollow Shaft And Parallel Keyway; Preparatory Work; Fitting - Siemens FLENDER B3 E Series Assembly And Operating Instructions Manual

6.4 Shaft­mounted gear unit with hollow shaft and parallel keyway
The end of the driven­machine shaft (material C60+N or higher strength) must be provided with a parallel
key to DIN 6885 Part 1 Form A. Furthermore, a centring hole to DIN 332 Form DS (tapped) should be
provided (for the connection dimensions of the driven machine shaft, see dimensioned drawing in the gear
unit documentation).
6.4.1

Preparatory work

To facilitate demounting (see also item 6.4.3), we recommend providing a connection for pressure oil on
the end of the driven machine shaft. For this a hole must be drilled through to the hollow shaft bore
(see fig. 41). This connection may also be used for supplying rust­releasing agent.
Fig. 41: H ollow shaft with parallel keyway, preparation
1 Machine shaft
2 Hollow shaft
6.4.2

Fitting

The gear unit must not be cleaned in an explosive environment.
Remove the preservative agent from the hollow shaft and the machine shaft with a suitable cleaning
agent (e.g. benzine).
Do not allow the cleaning agent (e.g. benzine) to contact the shaft­sealing rings.
Ensure adequate ventilation. Do not smoke!
Danger of explosion!
Check the hollow and machine shafts to ensure that seats and edges are not damaged. If necessary,
rework the parts with a suitable tool and clean them again.
Coat with a suitable lubricant to prevent frictional corrosion of the contact surfaces.
4
BA 5033 EN 03/2011
3 Parallel key
4 Pressure­oil connection
53 / 96
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1
2