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BA 5814 en 09/2014
6.3.2
Shrink disk
The shrink disk realizes a pressfit connection between a hollow shaft and a stub or drivenmachine shaft,
in the following called "stub shaft". The interference fit can transfer torques, bending moments and forces.
The jointing pressure between the hollow and stub shafts generated by the shrink disk is essential for the
torque and/or force transmission.
The shrink disk is delivered ready for fitting.
The shrink disk must not be disassembled before fitting for the first time.
Fitting and startup must be carried out by properly trained specialist personnel. Prior
to startup these instructions must be read, understood and adhered to. We accept no
liability for personal injury or damage due to nonobservance.
6.3.2.1 Fitting the shrink disk
•
Before beginning fitting work, the hollow shaft and the stub shaft must be carefully cleaned.
Observe manufacturer’s instructions for handling lubricants and solvents.
Do not allow cleaning agent or solvent to affect surfaces with paint coating.
The bore of the hollow shaft and the stub shaft must be absolutely clean and free of
grease and oil in the area of the shrinkdisk seat.
This is essential for safe and reliable torque transmission.
Contaminated solvents and dirty cloths as well as cleaning agents containing oil (such
paraffin or turpentine) are not suitable for removing grease.
B
W
A
1
2
3
5
4
Fig. 16:
Fitting the shrink disk
A
Greased
B
Absolutely grease and oilfree
W
Installation height
1
Stub shaft
3
Inner ring
5
Tensioning bolt
2
Hollow shaft
4
Outer ring
The outer surface of the hollow shaft must be lightly greased in the area of the shrinkdisk seat.
For a detailed view, refer to the dimensioned drawing in the gearunit documentation.