FLENDER K.SH - Alignment; Figure 5-1 Gap Dimension at the Grease Labyrinth

Assembly
5.3 Gear unit assembly
A5850-02en Edition 06/2022 53
Gap dimension at the grease labyrinth
The diagram below shows the gap dimension at the grease labyrinth:
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Figure5-1:Gap dimension at the grease labyrinth
NOTICE
Sparking, inadmissible temperature rise and shaft seal wear due to insufficient gap
dimension
An insufficient gap dimension can cause sparking, inadmissible temperature rise and shaft
seal wear.
If the shaft is sealed by Taconite seals, ensure that the set gap dimension of 1
+0.5
mm on
the grease labyrinth is not changed when the input and output elements (e.g. coupling
parts) are mounted. Rotating and stationary parts must not touch.
5.3.2.1 Alignment5.3 Gear unit assembly
Introduction
Depending on the order specification, machined surfaces (alignment surfaces) are provided
on the upper side of the housing for prealignment in the horizontal axis.
DANGER
Danger to life from flying fragments
Failure to align the unit with the required degree of accuracy can cause the shaft to rup-
ture. A ruptured shaft can result in serious or even fatal injuries.
Align the gear unit exactly so that it conforms to the specified alignment values.
Damage to the gear unit or its components or mounted components is possible.
The accuracy of the alignment between the shaft axes largely determines the service life of
the shafts, rolling-contact bearings and couplings. Please therefore always endeavour to
achieve zero deviation in the alignment of the shaft axes (does not apply to ZAPEX coup-
lings or cardan shafts). In this context, please also refer to the relevant operating instruc-
tions for more information about, for example, the requirements of couplings.