AT - Series SHRINK DISC INSTALLATION MANUAL

AT - Series

APEX.AT.SHRINK.EN.2010.001

SHRINK DISC INSTALLATION MANUAL

• Rotating shaft inside the hollow shaft is fixed by shrink disc.

C / FC Series D1 D2 D3 H1 H2

Note: Recommend tolerance for rotating shaft is h6.

In addition, the contact surfaces of the shaft ends and hollow shaft must have a mean roughness depth of Ra ≤

3,2 µm. Shaft and the hollow shaft must be manufactured from materials with the following mechanical properties:

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Yielt strength Re ≥ 340 N/mm

E-module about 206 kN/mm 2

2

Attention:

• Rough surface will reduced transmitted torque.

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Do not separate shrink disc apart before assemble, cleans rotating shaft outer diameter and hollow shaft inner diameter.

Make sure that the thread and under the head of the clamping bolts are light oiled

Make sure the tapered parts of the shrink disc are light oiled

Apply light weight oil on hollow shaft outer diameter for rust prevention only

• Shrink disc clamping pressure will force hollow shaft deformed.

♦ Fixed the rotating shaft position before tighten the shrink disc bolts.

• Tilted shaft will caused damaged.

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Make sure the alignment of rotating shaft with hollow shaft.

Do not use force to install rotating shaft into hollow shaft.

♦ Do not use hammer or access force when installed.

Follow cross patent to tighten the shrink disc bolts. Separates to two or three step to finish.

Confirmed the bolts tightening once again after finished. Tightening torque for bolt as chart:

AT-C & AT-FC Series

065 - 075 - 090 - 110

140 - 170 - 210 - 240

280

Bolt size

Tightening torque class 12.9

[Nm]

M5 6

M6 12

M8 30

♦ Make sure the tightening of rotating shaft. If not, double check the tolerance of rotating shaft.

For more information, please visit our website: www.apexdyna.eu

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