Shrink Disk; Fitting The Shrink Disk - Siemens FLENDER H3LV Assembly And Operating Instructions Manual

6.4

Shrink disk

The shrink disk makes a press­fit connection between a hollow shaft and a stub or driven­machine shaft,
in the following also called "stub shaft". The interference fit can transfer torques, bending moments and
forces. The joining 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.
WARNING
Serious injury
Risk of injury through flying fragments of the shrink disk.
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. Siemens accept no liability
for personal injury or damage due to non­observance of the instruction manual.
6.4.1

Fitting the shrink disk

• Before beginning fitting work, the hollow shaft and the stub shaft must be carefully cleaned.
CAUTION
Risk of injury through chemical substances
Observe manufacturer's instructions for handling lubricants and solvents.
Wear suitable protective clothing.
Note
Do not allow cleaning agent or solvent to affect surfaces with paint coating.
Note
The bore of the hollow shaft and the machine shaft must be absolutely free of grease 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 as paraffin or
turpentine) are not suitable for removing grease.
BA 5080 en 06/2014
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