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BA 5010 EN 03.10
6.7 Shrink disk
The shrink disk realizes a press fit connection between a hollow shaft and a stub/machine 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 force transmission.
The shrink disk is delivered ready for installation.
The shrink disk must not be dismantled before mounting for the first time.
Mounting 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.
6.7.1 Fitting the shrink disk
• Before beginning installation, the hollow shaft and the stub shaft must be carefully cleaned.
Observe manufacturer’s instructions for handling lubricants and solvents.
Do not allow cleansing agent or solvent to affect surfaces with paint coating.
The bore of the hollow shaft and the stub shaft must be absolutely clean, free
of grease and oil in the area of the shrink disk seat.
This is essential for safe and reliable torque transmission.
Do not use contaminated solvents or dirty cloths nor cleansing agents
containing oil (such as paraffin or terpentine) for removing grease.
B
W
A
1
2
3
5
4
Fig. 56: 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 shrink disk
seat.
For a detailed view, refer to the dimensioned drawing in the gear­unit documentation.
• Place the shrink disk on the hollow shaft and fasten, if required. For the exact installation height (W) of
the shrink disk, refer to the dimensioned drawing.